diff --git a/src/ikarus.boot b/src/ikarus.boot
index d6063c6..0578caf 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/makefile.ss b/src/makefile.ss
index 4567964..6020aa3 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -462,6 +462,7 @@
     [open-input-file         i r]
     [with-input-from-file    i r]
     [call-with-input-file    i r]
+    [call-with-output-file   i r]
     [with-input-from-string  i]
     [with-output-to-file     i r]
     [open-output-file        i r]