diff --git a/programs/ssl/query_config.c b/programs/ssl/query_config.c
index 7c8fbd8..798c917 100644
--- a/programs/ssl/query_config.c
+++ b/programs/ssl/query_config.c
@@ -747,6 +747,14 @@
     }
 #endif /* MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN */
 
+#if defined(MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND)
+    if( strcmp( "MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND );
+        return( 0 );
+    }
+#endif /* MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND */
+
 #if defined(MBEDTLS_TEST_NULL_ENTROPY)
     if( strcmp( "MBEDTLS_TEST_NULL_ENTROPY", config ) == 0 )
     {