diff --git a/lib/service/configuration_service.dart b/lib/service/configuration_service.dart
index 083b7fb..d8c6084 100644
--- a/lib/service/configuration_service.dart
+++ b/lib/service/configuration_service.dart
@@ -8,7 +8,8 @@ class ConfigurationService {
   int _simSpeed;
   int get simSpeed => _simSpeed;
   void set simSpeed(int val) {
-    _simSpeed = 5;
+    _simSpeed = val;
+    engineService.engine.stepsPerSecond = simSpeed;
   }
 
   ConfigurationService(this.engineService) {