diff --git a/infection.json.dist b/infection.json.dist
index e6852ad96..8188b4511 100644
--- a/infection.json.dist
+++ b/infection.json.dist
@@ -12,6 +12,7 @@
         }
     },
     "mutators": {
+        "@default": true,
         "MethodCallRemoval": {
             "ignore": [
                 "Infection\\Finder\\SourceFilesFinder::__construct::63"