diff --git a/configure.in b/configure.in
index 9d9be31e8280..b9ddf933cb29 100644
--- a/configure.in
+++ b/configure.in
@@ -1389,6 +1389,8 @@ mailnews/compose/Makefile
 mailnews/compose/public/Makefile
 mailnews/compose/src/Makefile
 mailnews/compose/tests/Makefile
+mailnews/compose/tests/smtp/Makefile
+mailnews/compose/tests/compose/Makefile
 mailnews/public/Makefile
 "