diff --git a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
index 42399a665c97c436aa608b35c1166a28029f27e6..b5c1b6eaaf71982bdec2f96572491ac4dbf95f68 100644
--- a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
+++ b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
@@ -25,7 +25,7 @@ startTime       0;
 
 stopAt          endTime;
 
-endTime         1;
+endTime         0.5;
 
 deltaT          0.0001;