diff --git a/demos/timing.c b/demos/timing.c
index 0c06a6cf..f4dcdd29 100644
--- a/demos/timing.c
+++ b/demos/timing.c
@@ -1374,6 +1374,7 @@ __attribute__ ((aligned (16)))
    }
 
 #endif
+   XFREE(buf);
 #else
    LTC_UNUSED_PARAM(MAC_SIZE);
    fprintf(stderr, "NO ENCMACs\n");