diff --git a/src/Mod/Part/App/FeaturePartFuse.cpp b/src/Mod/Part/App/FeaturePartFuse.cpp
index 448a2f0578..b740201c51 100644
--- a/src/Mod/Part/App/FeaturePartFuse.cpp
+++ b/src/Mod/Part/App/FeaturePartFuse.cpp
@@ -134,6 +134,7 @@ App::DocumentObjectExecReturn *MultiFuse::execute()
 
             mkFuse.SetArguments(shapeArguments);
             mkFuse.SetTools(shapeTools);
+            mkFuse.SetParallelRun(true);
             mkFuse.Build();
             if (!mkFuse.IsDone())
                 throw Base::RuntimeError("MultiFusion failed");