diff --git a/src/macro.c b/src/macro.c
index e6f5db1d..014cc024 100644
--- a/src/macro.c
+++ b/src/macro.c
@@ -119,14 +119,10 @@ pic_import(pic_state *pic, pic_value spec)
   for (xh_begin(lib->exports, &it); ! xh_isend(&it); xh_next(&it)) {
 
 #if DEBUG
-    if (it.e->val >= 0) {
-      printf("* importing %s as %s\n",
-             pic_symbol_name(pic, (long)it.e->key),
-             pic_symbol_name(pic, it.e->val));
-    }
-    else {
-      printf("* importing %s\n", pic_symbol_name(pic, (long)it.e->key));
-    }
+    assert(it.e->val >= 0);
+    printf("* importing %s as %s\n",
+           pic_symbol_name(pic, (long)it.e->key),
+           pic_symbol_name(pic, it.e->val));
 #endif
 
     xh_put_int(pic->lib->senv->name, (long)it.e->key, it.e->val);