diff --git a/mozilla/layout/html/content/src/Makefile b/mozilla/layout/html/content/src/Makefile
index 0e29dea6b17..8bc5ed6339e 100644
--- a/mozilla/layout/html/content/src/Makefile
+++ b/mozilla/layout/html/content/src/Makefile
@@ -29,6 +29,7 @@ CPPSRCS =				\
 	nsHTMLObject.cpp		\
 	nsHTMLTitle.cpp			\
 	nsObjectContent.cpp		\
+	nsHTMLLayer.cpp			\
 	$(NULL)
 
 MODULE = raptor