diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c
index a172107bd29f3df5b8db58135ea6dd0a5ba2dd56..099abb262de9ac3db0906ec5ffa5e5d09fbd84fb 100644
--- a/ssl/ssl_sess.c
+++ b/ssl/ssl_sess.c
@@ -322,7 +322,7 @@ int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
 	return remove_session_lock(ctx, c, 1);
 }
 
-int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)
+static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)
 	{
 	SSL_SESSION *r;
 	int ret=0;