diff --git a/collects/algol60/tool.ss b/collects/algol60/tool.ss
index ae0c0e708a..990a8fc039 100644
--- a/collects/algol60/tool.ss
+++ b/collects/algol60/tool.ss
@@ -12,8 +12,8 @@
 
   (provide tool@)
 
-  (define base-importing-stx (dynamic-require 'mzlib/algol60/base
-					     'base-importing-stx))
+  (define base-importing-stx (dynamic-require 'algol60/base
+					      'base-importing-stx))
 
   (define tool@
     (unit 
diff --git a/collects/compiler/main.ss b/collects/compiler/main.ss
index 0ec0c01ba9..84567e02c5 100644
--- a/collects/compiler/main.ss
+++ b/collects/compiler/main.ss
@@ -457,9 +457,9 @@
 					    (dest-dir)))]
     [(make-zo)
      (let ([n (make-base-empty-namespace)]
-	   [mc (dynamic-require 'mzlib/mzlib/cm
+	   [mc (dynamic-require 'mzlib/cm
 				'managed-compile-zo)]
-	   [cnh (dynamic-require 'mzlib/mzlib/cm
+	   [cnh (dynamic-require 'mzlib/cm
 				 'manager-compile-notify-handler)]
 	   [did-one? #f])
        (parameterize ([current-namespace n]