diff --git a/image/test/browser/Makefile.in b/image/test/browser/Makefile.in
index 3d0863ea83f..783ac15b07e 100644
--- a/image/test/browser/Makefile.in
+++ b/image/test/browser/Makefile.in
@@ -9,18 +9,15 @@ VPATH		= @srcdir@
 relativesrcdir  = image/test/browser
 
 include $(DEPTH)/config/autoconf.mk
+
+MOCHITEST_BROWSER_FILES = head.js \
+  browser_image.js \
+  image.html \
+  imageX2.html \
+  animated.gif \
+  animated2.gif \
+  browser_bug666317.js \
+  big.png \
+  $(NULL)
+
 include $(topsrcdir)/config/rules.mk
-
-_BROWSER_FILES = head.js \
-                 browser_image.js \
-                 image.html \
-                 imageX2.html \
-                 animated.gif \
-                 animated2.gif \
-		 browser_bug666317.js \
-		 big.png \
-                 $(NULL)
-
-libs::	$(_BROWSER_FILES)
-	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/browser/$(relativesrcdir)
-