diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 232dc64..58f12c9 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -462,7 +462,7 @@
         poll_type = MBEDTLS_NET_POLL_READ;
 #if !defined(MBEDTLS_TIMING_C)
     else
-        return;
+        return( 0 );
 #endif
 
     while( 1 )