diff --git a/src/modules/physics/box2d/Body.cpp b/src/modules/physics/box2d/Body.cpp
index 378e44a80..5397e5ce7 100644
--- a/src/modules/physics/box2d/Body.cpp
+++ b/src/modules/physics/box2d/Body.cpp
@@ -253,7 +253,7 @@ namespace box2d
 		body->SetMassData(&massData);
 	}
 
-	int Body::setMass(float m)
+	void Body::setMass(float m)
 	{
 		b2MassData data;
 		body->GetMassData(&data);