diff --git a/templates/graphql/docs/example.md.twig b/templates/graphql/docs/example.md.twig
index 1b8a85271..3840ac7fd 100644
--- a/templates/graphql/docs/example.md.twig
+++ b/templates/graphql/docs/example.md.twig
@@ -58,7 +58,7 @@ mutation {
         {%~ for definition in spec.definitions %}
         {%~ if definition.name == method.responseModel %}
         {%~ for property in definition.properties | filter(p => p.required) %}
-        {{ property.name | caseCamel }}
+        {{ property.name | replace({'$': '_'}) }}
         {%~ endfor %}
         {%~ if definition.additionalProperties %}
         data