diff --git a/src/logic/EngineController.cpp b/src/logic/EngineController.cpp
index ec9ef0b2a..388fecb6f 100644
--- a/src/logic/EngineController.cpp
+++ b/src/logic/EngineController.cpp
@@ -283,7 +283,7 @@ void EngineController::createWorld(
 
     // generator-based environments must die in 1.0
     bool genBasedEnv = false;
-    if (auto genDef = generators.find(environment)) {
+    if (generators.find(environment)) {
         genBasedEnv = true;
     }