diff --git a/xpcom/tests/moz.build b/xpcom/tests/moz.build
index e97c869c03a6..5ee70272139c 100644
--- a/xpcom/tests/moz.build
+++ b/xpcom/tests/moz.build
@@ -46,6 +46,4 @@ RESOURCE_FILES += [
     "test.properties",
 ]
 
-CRASHTEST_MANIFESTS += [
-    "crashtests/crashtests.list"
-]
+CRASHTEST_MANIFESTS += ["crashtests/crashtests.list"]