--- a/make/launcher/Launcher-java.desktop.gmk	Thu Oct 05 11:02:18 2017 +0200
+++ b/make/launcher/Launcher-java.desktop.gmk	Thu Oct 05 12:41:06 2017 +0200
@@ -26,7 +26,7 @@
 include LauncherCommon.gmk
 
 # Hook to include the corresponding custom file, if present.
-$(eval $(call IncludeCustomExtension, , launcher/Launcher-java.desktop.gmk))
+$(eval $(call IncludeCustomExtension, launcher/Launcher-java.desktop.gmk))
 
 ifeq ($(ENABLE_HEADLESS_ONLY), false)
   $(eval $(call SetupBuildLauncher, appletviewer, \