diff --git a/include/FluidSCWrapper.hpp b/include/FluidSCWrapper.hpp
index b7219d0..f93aa09 100644
--- a/include/FluidSCWrapper.hpp
+++ b/include/FluidSCWrapper.hpp
@@ -139,7 +139,7 @@ public:
     {
       if (mOutputConnections[i]) mOutputs[i].reset(out(static_cast<int>(i)), 0, fullBufferSize());
     }
-    for (size_t i = 0; i < mClient.controlChannelsOut(); ++i) { mOutputs[i].reset(out(i), 0, 1); }
+    for (size_t i = 0; i < mClient.controlChannelsOut(); ++i) { mOutputs[i].reset(out(static_cast<int>(i)), 0, 1); }
     mClient.process(mAudioInputs, mOutputs);
   }