diff --git a/collects/framework/private/main.ss b/collects/framework/private/main.ss
index 8377cc14..c173c053 100644
--- a/collects/framework/private/main.ss
+++ b/collects/framework/private/main.ss
@@ -3,7 +3,7 @@
 	   (lib "class.ss")
 	   "sig.ss"
            "../gui-utils-sig.ss"
-	   "../macro"
+	   "../macro.ss"
            (lib "string-constant.ss" "string-constants")
 	   (lib "mred-sig.ss" "mred"))
   
diff --git a/collects/framework/private/pasteboard.ss b/collects/framework/private/pasteboard.ss
index 548a11d4..90b30255 100644
--- a/collects/framework/private/pasteboard.ss
+++ b/collects/framework/private/pasteboard.ss
@@ -2,7 +2,7 @@
   (require (lib "unitsig.ss")
 	   (lib "class.ss")
 	   (lib "class100.ss")
-	   "sig"
+	   "sig.ss"
 	   "../macro.ss"
 	   (lib "mred-sig.ss" "mred"))
 
@@ -19,4 +19,4 @@
       (define -keymap% (editor:keymap-mixin basic%))
       (define file% (editor:file-mixin -keymap%))
       (define backup-autosave% (editor:backup-autosave-mixin file%))
-      (define info% (editor:info-mixin backup-autosave%)))))
\ No newline at end of file
+      (define info% (editor:info-mixin backup-autosave%)))))
diff --git a/collects/framework/private/path-utils.ss b/collects/framework/private/path-utils.ss
index d9307562..31ea3ccc 100644
--- a/collects/framework/private/path-utils.ss
+++ b/collects/framework/private/path-utils.ss
@@ -1,6 +1,6 @@
 (module path-utils mzscheme
   (require (lib "unitsig.ss")
-	   "sig"
+	   "sig.ss"
 	   (lib "mred-sig.ss" "mred"))
 
   (provide path-utils@)
diff --git a/collects/framework/private/scheme.ss b/collects/framework/private/scheme.ss
index 9e5dc430..2404f4c5 100644
--- a/collects/framework/private/scheme.ss
+++ b/collects/framework/private/scheme.ss
@@ -6,7 +6,7 @@
            (lib "unitsig.ss")
 	   (lib "class.ss")
 	   (lib "class100.ss")
-	   "sig"
+	   "sig.ss"
 	   "../macro.ss"
 	   (lib "mred-sig.ss" "mred")
 	   (lib "list.ss")