diff --git a/js/src/xpconnect/tests/mochitest/Makefile.in b/js/src/xpconnect/tests/mochitest/Makefile.in
index 690bcf9898dc..d3ede465a781 100644
--- a/js/src/xpconnect/tests/mochitest/Makefile.in
+++ b/js/src/xpconnect/tests/mochitest/Makefile.in
@@ -94,7 +94,7 @@ _TEST_FILES =	bug500931_helper.html \
 		file_bug658560.html \
 		$(NULL)
 
-ifndef ANDROID
+ifneq ($(OS_TARGET),Android)
 ifndef MOZ_PLATFORM_MAEMO
 _TEST_FILES +=	test_bug657267.html \
 		bug657267.jar
diff --git a/mobile/chrome/tests/Makefile.in b/mobile/chrome/tests/Makefile.in
index 812fc5404fa2..0acee381d1a3 100644
--- a/mobile/chrome/tests/Makefile.in
+++ b/mobile/chrome/tests/Makefile.in
@@ -103,7 +103,7 @@ _BROWSER_FILES = \
   mock_autocomplete.json\
   $(NULL)
 
-ifndef ANDROID
+ifneq ($(OS_TARGET),Android)
 ifndef MOZ_PLATFORM_MAEMO
 _BROWSER_FILES +=  browser_sidebars.js
 endif