diff --git a/dom/power/moz.build b/dom/power/moz.build
index cdd99264d..5474ebada 100644
--- a/dom/power/moz.build
+++ b/dom/power/moz.build
@@ -21,7 +21,7 @@ EXPORTS.mozilla.dom.power += [
     'Types.h',
 ]
 
-UNIFIED_SOURCES += [
+SOURCES += [
     'PowerManager.cpp',
     'PowerManagerService.cpp',
     'WakeLock.cpp',