diff --git a/xpcom/typelib/xpidl/Makefile.in b/xpcom/typelib/xpidl/Makefile.in
index cc737048814..1c3a759ecfe 100644
--- a/xpcom/typelib/xpidl/Makefile.in
+++ b/xpcom/typelib/xpidl/Makefile.in
@@ -29,6 +29,7 @@ CSRCS = \
 	xpidl_header.c \
 	xpidl_typelib.c \
 	xpidl_doc.c \
+	xpidl_java.c \
 	$(NULL)
 
 # Compile directly against the static lib, so we can use xpidl during the build