diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 3b7fd67..ef64848 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -566,6 +566,7 @@
 {
     size_t i;
     (void) data;
+    int ret;
 
     ret = mbedtls_entropy_func( data, output, len );
     for ( i = 0; i < len; i++ )