diff --git a/mailnews/mime/cthandlers/vcard/Makefile.in b/mailnews/mime/cthandlers/vcard/Makefile.in
index d29cd6f2f1cf..f2f0787b01bf 100644
--- a/mailnews/mime/cthandlers/vcard/Makefile.in
+++ b/mailnews/mime/cthandlers/vcard/Makefile.in
@@ -20,6 +20,8 @@ topsrcdir	= @top_srcdir@
 VPATH		= @srcdir@
 srcdir		= @srcdir@
 
+IS_COMPONENT=1
+
 include $(DEPTH)/config/autoconf.mk
 
 MODULE=mimect-vcard