diff --git a/mozilla/embedding/browser/gtk/Makefile.in b/mozilla/embedding/browser/gtk/Makefile.in
index af6f8ab889d..60a08e22cb6 100644
--- a/mozilla/embedding/browser/gtk/Makefile.in
+++ b/mozilla/embedding/browser/gtk/Makefile.in
@@ -44,10 +44,10 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 MODULE		= gtkembedmoz
-DIRS=src
+TOOL_DIRS=src
 
 ifdef ENABLE_TESTS
-DIRS  += tests
+TOOL_DIRS  += tests
 endif
 
 PACKAGE_FILE = gtkembed.pkg