diff --git a/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile b/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
index a0c73b6768..c7496c8fe9 100644
--- a/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
+++ b/src/add-ons/mail_daemon/inbound_protocols/imap/Jamfile
@@ -11,6 +11,8 @@ UsePrivateHeaders mail ;
 
 SubDirHdrs [ FDirName $(HAIKU_TOP) headers os add-ons mail_daemon ] ;
 
+local sslDir ;
+
 if $(USE_SSL) {
 	SubDirC++Flags -DUSE_SSL ;
 	if ! $(SSL_DIR) {