diff --git a/contrib/03.callcc/callcc.c b/contrib/03.callcc/callcc.c
index 4019df18..2f953269 100644
--- a/contrib/03.callcc/callcc.c
+++ b/contrib/03.callcc/callcc.c
@@ -1,6 +1,6 @@
 #include "picrin.h"
 
-struct pic_cont {
+struct pic_fullcont {
   jmp_buf jmp;
 
   pic_jmpbuf *prev_jmp;
@@ -31,7 +31,7 @@ struct pic_cont {
 static void
 cont_dtor(pic_state *pic, void *data)
 {
-  struct pic_cont *cont = data;
+  struct pic_fullcont *cont = data;
 
   pic_free(pic, cont->stk_ptr);
   pic_free(pic, cont->st_ptr);
@@ -44,7 +44,7 @@ cont_dtor(pic_state *pic, void *data)
 static void
 cont_mark(pic_state *pic, void *data, void (*mark)(pic_state *, pic_value))
 {
-  struct pic_cont *cont = data;
+  struct pic_fullcont *cont = data;
   struct pic_winder *wind;
   pic_value *stack;
   pic_callinfo *ci;
@@ -89,8 +89,8 @@ cont_mark(pic_state *pic, void *data, void (*mark)(pic_state *, pic_value))
 
 static const pic_data_type cont_type = { "continuation", cont_dtor, cont_mark };
 
-static void save_cont(pic_state *, struct pic_cont **);
-static void restore_cont(pic_state *, struct pic_cont *);
+static void save_cont(pic_state *, struct pic_fullcont **);
+static void restore_cont(pic_state *, struct pic_fullcont *);
 
 static ptrdiff_t
 native_stack_length(pic_state *pic, char **pos)
@@ -107,15 +107,15 @@ native_stack_length(pic_state *pic, char **pos)
 }
 
 static void
-save_cont(pic_state *pic, struct pic_cont **c)
+save_cont(pic_state *pic, struct pic_fullcont **c)
 {
   void pic_vm_tear_off(pic_state *);
-  struct pic_cont *cont;
+  struct pic_fullcont *cont;
   char *pos;
 
   pic_vm_tear_off(pic);         /* tear off */
 
-  cont = *c = pic_malloc(pic, sizeof(struct pic_cont));
+  cont = *c = pic_malloc(pic, sizeof(struct pic_fullcont));
 
   cont->prev_jmp = pic->jmp;
 
@@ -153,7 +153,7 @@ save_cont(pic_state *pic, struct pic_cont **c)
 }
 
 static void
-native_stack_extend(pic_state *pic, struct pic_cont *cont)
+native_stack_extend(pic_state *pic, struct pic_fullcont *cont)
 {
   volatile pic_value v[1024];
 
@@ -162,10 +162,10 @@ native_stack_extend(pic_state *pic, struct pic_cont *cont)
 }
 
 PIC_NORETURN static void
-restore_cont(pic_state *pic, struct pic_cont *cont)
+restore_cont(pic_state *pic, struct pic_fullcont *cont)
 {
   char v;
-  struct pic_cont *tmp = cont;
+  struct pic_fullcont *tmp = cont;
 
   if (&v < pic->native_stack_start) {
     if (&v > cont->stk_pos) native_stack_extend(pic, cont);
@@ -211,7 +211,7 @@ cont_call(pic_state *pic)
   struct pic_proc *proc;
   size_t argc;
   pic_value *argv;
-  struct pic_cont *cont;
+  struct pic_fullcont *cont;
 
   proc = pic_get_proc(pic);
   pic_get_args(pic, "*", &argc, &argv);
@@ -226,9 +226,9 @@ cont_call(pic_state *pic)
 }
 
 pic_value
-pic_callcc(pic_state *pic, struct pic_proc *proc)
+pic_callcc_full(pic_state *pic, struct pic_proc *proc)
 {
-  struct pic_cont *cont;
+  struct pic_fullcont *cont;
 
   save_cont(pic, &cont);
   if (setjmp(cont->jmp)) {
@@ -250,9 +250,9 @@ pic_callcc(pic_state *pic, struct pic_proc *proc)
 }
 
 static pic_value
-pic_callcc_trampoline(pic_state *pic, struct pic_proc *proc)
+pic_callcc_full_trampoline(pic_state *pic, struct pic_proc *proc)
 {
-  struct pic_cont *cont;
+  struct pic_fullcont *cont;
 
   save_cont(pic, &cont);
   if (setjmp(cont->jmp)) {
@@ -280,7 +280,7 @@ pic_callcc_callcc(pic_state *pic)
 
   pic_get_args(pic, "l", &cb);
 
-  return pic_callcc_trampoline(pic, cb);
+  return pic_callcc_full_trampoline(pic, cb);
 }
 
 #define pic_redefun(pic, lib, name, func)       \
diff --git a/extlib/benz/cont.c b/extlib/benz/cont.c
index e9891cf9..8ea5b896 100644
--- a/extlib/benz/cont.c
+++ b/extlib/benz/cont.c
@@ -49,7 +49,7 @@ pic_dynamic_wind(pic_state *pic, struct pic_proc *in, struct pic_proc *thunk, st
 }
 
 void
-pic_save_point(pic_state *pic, struct pic_escape *escape)
+pic_save_point(pic_state *pic, struct pic_cont *escape)
 {
   escape->jmp.prev = pic->jmp;
   pic->jmp = &escape->jmp;
@@ -66,7 +66,7 @@ pic_save_point(pic_state *pic, struct pic_escape *escape)
 }
 
 void
-pic_load_point(pic_state *pic, struct pic_escape *escape)
+pic_load_point(pic_state *pic, struct pic_cont *escape)
 {
   pic_jmpbuf *jmp;
 
@@ -100,17 +100,17 @@ escape_call(pic_state *pic)
   pic_get_args(pic, "*", &argc, &argv);
 
   e = pic_data_ptr(pic_attr_ref(pic, pic_obj_value(pic_get_proc(pic)), "@@escape"));
-  ((struct pic_escape *)e->data)->results = pic_list_by_array(pic, argc, argv);
+  ((struct pic_cont *)e->data)->results = pic_list_by_array(pic, argc, argv);
 
   pic_load_point(pic, e->data);
 
-  PIC_LONGJMP(pic, (void *)((struct pic_escape *)e->data)->jmp.buf, 1);
+  PIC_LONGJMP(pic, ((struct pic_cont *)e->data)->jmp.buf, 1);
 
   PIC_UNREACHABLE();
 }
 
 struct pic_proc *
-pic_make_econt(pic_state *pic, struct pic_escape *escape)
+pic_make_cont(pic_state *pic, struct pic_cont *escape)
 {
   static const pic_data_type escape_type = { "escape", pic_free, NULL };
   struct pic_proc *cont;
@@ -127,13 +127,13 @@ pic_make_econt(pic_state *pic, struct pic_escape *escape)
 }
 
 pic_value
-pic_escape(pic_state *pic, struct pic_proc *proc)
+pic_callcc(pic_state *pic, struct pic_proc *proc)
 {
-  struct pic_escape *escape = pic_malloc(pic, sizeof(struct pic_escape));
+  struct pic_cont *escape = pic_malloc(pic, sizeof(struct pic_cont));
 
   pic_save_point(pic, escape);
 
-  if (PIC_SETJMP(pic, (void *)escape->jmp.buf)) {
+  if (PIC_SETJMP(pic, escape->jmp.buf)) {
     pic->jmp = pic->jmp->prev;
 
     return pic_values_by_list(pic, escape->results);
@@ -141,7 +141,7 @@ pic_escape(pic_state *pic, struct pic_proc *proc)
   else {
     pic_value val;
 
-    val = pic_apply1(pic, proc, pic_obj_value(pic_make_econt(pic, escape)));
+    val = pic_apply1(pic, proc, pic_obj_value(pic_make_cont(pic, escape)));
 
     pic->jmp = pic->jmp->prev;
 
@@ -237,7 +237,7 @@ pic_cont_callcc(pic_state *pic)
 
   pic_get_args(pic, "l", &cb);
 
-  return pic_escape(pic, cb);
+  return pic_callcc(pic, cb);
 }
 
 static pic_value
diff --git a/extlib/benz/include/picrin/cont.h b/extlib/benz/include/picrin/cont.h
index b3002577..a5d83ebc 100644
--- a/extlib/benz/include/picrin/cont.h
+++ b/extlib/benz/include/picrin/cont.h
@@ -9,7 +9,7 @@
 extern "C" {
 #endif
 
-struct pic_escape {
+struct pic_cont {
   pic_jmpbuf jmp;
 
   struct pic_winder *wind;
@@ -24,10 +24,10 @@ struct pic_escape {
   pic_value results;
 };
 
-void pic_save_point(pic_state *, struct pic_escape *);
-void pic_load_point(pic_state *, struct pic_escape *);
+void pic_save_point(pic_state *, struct pic_cont *);
+void pic_load_point(pic_state *, struct pic_cont *);
 
-struct pic_proc *pic_make_econt(pic_state *, struct pic_escape *);
+struct pic_proc *pic_make_cont(pic_state *, struct pic_cont *);
 
 void pic_wind(pic_state *, struct pic_winder *, struct pic_winder *);
 pic_value pic_dynamic_wind(pic_state *, struct pic_proc *, struct pic_proc *, struct pic_proc *);
@@ -42,7 +42,7 @@ pic_value pic_values_by_array(pic_state *, size_t, pic_value *);
 pic_value pic_values_by_list(pic_state *, pic_value);
 size_t pic_receive(pic_state *, size_t, pic_value *);
 
-pic_value pic_escape(pic_state *, struct pic_proc *);
+pic_value pic_callcc(pic_state *, struct pic_proc *);
 
 #if defined(__cplusplus)
 }
diff --git a/extlib/benz/include/picrin/error.h b/extlib/benz/include/picrin/error.h
index e7aaf920..ce20eb69 100644
--- a/extlib/benz/include/picrin/error.h
+++ b/extlib/benz/include/picrin/error.h
@@ -28,13 +28,13 @@ struct pic_error *pic_make_error(pic_state *, pic_sym *, const char *, pic_list)
   pic_try_(PIC_GENSYM(escape))
 #define pic_catch                               \
   pic_catch_(PIC_GENSYM(label))
-#define pic_try_(escape)                                                \
+#define pic_try_(cont)                                                  \
   do {                                                                  \
-    struct pic_escape *escape = pic_malloc(pic, sizeof(struct pic_escape)); \
-    pic_save_point(pic, escape);                                        \
-    if (PIC_SETJMP(pic, (void *)escape->jmp.buf) == 0) {                \
+    struct pic_cont *cont = pic_malloc(pic, sizeof(struct pic_cont));   \
+    pic_save_point(pic, cont);                                          \
+    if (PIC_SETJMP(pic, cont->jmp.buf) == 0) {                          \
       do {                                                              \
-        pic_push_try(pic, pic_make_econt(pic, escape));
+        pic_push_try(pic, pic_make_cont(pic, cont));
 #define pic_catch_(label)                                 \
         pic_pop_try(pic);                                 \
       } while (0);                                        \