diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 8bdf237d9..d99f10515 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -2250,7 +2250,7 @@ static int ssl_write_server_key_exchange( ssl_context *ssl )
          *     ECPoint      public;
          * } ServerECDHParams;
          */
-        const ecp_curve_info **curve;
+        const ecp_curve_info **curve = NULL;
 #if defined(POLARSSL_SSL_SET_CURVES)
         const ecp_group_id *gid;