diff --git a/src/ikarus.boot b/src/ikarus.boot
index 063e331..6563e53 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/libhandlers.ss b/src/libhandlers.ss
index 801455e..4149cbb 100644
--- a/src/libhandlers.ss
+++ b/src/libhandlers.ss
@@ -1,4 +1,8 @@
 
+(library (ikarus handlers)
+  (export)
+  (import (scheme))
+
 (primitive-set! 'make-parameter
   (case-lambda
     [(x) 
@@ -105,4 +109,4 @@
           ((interrupt-handler)))
         (display "Engine Expired\n" (console-output-port)))))
 
-
+)
diff --git a/src/makefile.ss b/src/makefile.ss
index c5dc0a3..5554d3c 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -229,7 +229,7 @@
 
 (define scheme-library-files
   '(  ["libhandlers.ss"   "libhandlers.fasl"  p0 onepass]
-      ["libcontrol.ss"   "libcontrol.fasl"  p0 onepass]
+    ["libcontrol.ss"   "libcontrol.fasl"  p0 onepass]
     ["libcollect.ss"    "libcollect.fasl"   p0 onepass]
     ["librecord.ss"     "librecord.fasl"    p0 onepass]
     ["libcxr.ss"        "libcxr.fasl"       p0 onepass]
diff --git a/src/syntax.ss b/src/syntax.ss
index 78a569d..b640225 100644
--- a/src/syntax.ss
+++ b/src/syntax.ss
@@ -829,6 +829,8 @@
         [primitive-ref primitive-ref-label (core-prim .  primitive-ref)]
         [$$apply     $$apply-label    (core-prim . $$apply)]
         [$arg-list     $arg-list-label    (core-prim . $arg-list)]
+        [$interrupted? $interrupted?-label (core-prim .  $interrupted?)]
+        [$unset-interrupted!     $unset-interrupted!-label    (core-prim . $unset-interrupted!)]
         [$fp-at-base     $fp-at-base-label    (core-prim . $fp-at-base)]
         [$primitive-call/cc     $primitive-call/cc-label    (core-prim . $primitive-call/cc)]
         [$frame->continuation     $frame->continuation-label    (core-prim . $frame->continuation)]