diff --git a/lab/ikarusdoc b/lab/ikarusdoc
index 1286347..f5c8c5e 100755
--- a/lab/ikarusdoc
+++ b/lab/ikarusdoc
@@ -1,4 +1,4 @@
-#!/Users/aghuloum/.opt/bin/ikarus --script
+#!/usr/bin/env ikarus --script
 (define get-comments
   (lambda (file-name)
     (define comments '())
diff --git a/src/ikarus.boot b/src/ikarus.boot
index 5cd17e9..3100d97 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/makefile.ss b/src/makefile.ss
index 5a27ff1..a537d53 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -1,4 +1,4 @@
-#!../bin/ikarus -b ikarus.boot --script
+#!/usr/bin/env ikarus -b ikarus.boot --script
 
 ;;; 9.1: * starting with libnumerics
 ;;; 9.0: * graph marks for both reader and writer 
@@ -15,7 +15,6 @@
 
 
 
-
 (define macros
   '(|#primitive| lambda case-lambda set! quote begin define if letrec
     foreign-call $apply