diff --git a/collects/frtime/etc.ss b/collects/frtime/etc.ss
index 69774ca991..db0a67d924 100644
--- a/collects/frtime/etc.ss
+++ b/collects/frtime/etc.ss
@@ -1,5 +1,5 @@
 
-(module etc frtime
+(module etc frtime/frtime-lang-only
   (require (lib "main-collects.ss" "setup"))
   (require-for-syntax syntax/kerncase
 		      syntax/stx
diff --git a/collects/frtime/list.ss b/collects/frtime/list.ss
index 59027e8211..a3cf348baa 100644
--- a/collects/frtime/list.ss
+++ b/collects/frtime/list.ss
@@ -1,4 +1,4 @@
-(module list frtime
+(module list frtime/frtime-lang-only
   
   (require (lifted mzlib/list sort
                    fifth sixth seventh eighth
diff --git a/collects/frtime/math.ss b/collects/frtime/math.ss
index aa884cd47f..82b3a92627 100644
--- a/collects/frtime/math.ss
+++ b/collects/frtime/math.ss
@@ -3,7 +3,7 @@
 ;; math.ss: some extra math routines
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(module math "frtime.ss"
+(module math frtime/frtime-lang-only
   (provide e 
 	  pi 
 	  sqr