--- a/suite/build.mk
+++ b/suite/build.mk
@@ -92,17 +92,24 @@ install::
 
 source-package::
 	@$(MAKE) -C suite/installer source-package
 
 ifndef COMM_BUILD
 # mochitests need to be run from the Mozilla build system
 ifdef ENABLE_TESTS
 # Implemented in testing/testsuite-targets.mk
+
+ifdef TEST_PATH
+BROWSER_TEST_PATH = --test-path=$(TEST_PATH)
+else
+BROWSER_TEST_PATH =
+endif
+
 mochitest-browser-chrome:
-	$(RUN_MOCHITEST) --browser-chrome
+	$(RUN_MOCHITEST) --browser-chrome $(BROWSER_TEST_PATH)
 	$(CHECK_TEST_ERROR)
 
 mochitest:: mochitest-browser-chrome
 
 .PHONY: mochitest-browser-chrome
 endif
 endif