diff --git a/src/ikarus.boot b/src/ikarus.boot
index 9db05c8..9e6e4dc 100644
Binary files a/src/ikarus.boot and b/src/ikarus.boot differ
diff --git a/src/libtimers.ss b/src/ikarus.timer.ss
similarity index 97%
rename from src/libtimers.ss
rename to src/ikarus.timer.ss
index a32184e..97a8f45 100644
--- a/src/libtimers.ss
+++ b/src/ikarus.timer.ss
@@ -1,7 +1,7 @@
 
 (library (ikarus timers)
-  (export)
-  (import (scheme))
+  (export time-it)
+  (import (except (ikarus) time-it))
 
   (define-record stats 
     (user-secs user-usecs sys-secs sys-usecs real-secs real-usecs collection-id))
@@ -96,7 +96,6 @@
                            t1 t0)
               (apply values v*)])))]))
                        
-  (begin)
   (define (bytes-minor)
     (foreign-call "ikrt_bytes_allocated"))
   (define (bytes-major)
@@ -104,6 +103,4 @@
   (define (diff-bytes mnr0 mjr0 mnr1 mjr1)
     (+ (fx- mnr1 mnr0) (* (fx- mjr1 mjr0) #x10000000)))
 
-  (primitive-set! 'time-it time-it)
-
 )
diff --git a/src/makefile.ss b/src/makefile.ss
index 2d29477..9798d01 100755
--- a/src/makefile.ss
+++ b/src/makefile.ss
@@ -58,7 +58,7 @@
       "ikarus.pretty-print.ss"
       "ikarus.cafe.ss"
       "ikarus.posix.ss"
-      "libtimers.ss"
+      "ikarus.timer.ss"
       "library-manager.ss"
       "libtoplevel.ss"))