diff --git a/include/PolyVox/BaseVolume.inl b/include/PolyVox/BaseVolume.inl
index a54227f4..6f5f5b11 100644
--- a/include/PolyVox/BaseVolume.inl
+++ b/include/PolyVox/BaseVolume.inl
@@ -125,6 +125,7 @@ namespace PolyVox
 	uint32_t BaseVolume<VoxelType>::calculateSizeInBytes(void)
 	{
 		POLYVOX_THROW(not_implemented, "You should never call the base class version of this function.");
+		return 0;
 	}
 }