diff --git a/extensions/layout-debug/src/Makefile.in b/extensions/layout-debug/src/Makefile.in
index bdb900d41feb..ed141cbbd5dd 100644
--- a/extensions/layout-debug/src/Makefile.in
+++ b/extensions/layout-debug/src/Makefile.in
@@ -62,7 +62,7 @@ REQUIRES	= xpcom \
 		  view \
 		  pref \
 		  appshell \
-		  appstartup \
+		  appcomps \
 		  $(NULL)
 
 XPIDLSRCS	= \