diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index e31552a2..2efb58e8 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -2207,7 +2207,7 @@ void ssl3_clear(SSL *s)
 
 	if (s->s3->alpn_selected)
 		{
-		free(s->s3->alpn_selected);
+		OPENSSL_free(s->s3->alpn_selected);
 		s->s3->alpn_selected = NULL;
 		}
 	memset(s->s3,0,sizeof *s->s3);