diff --git a/src/ifcconvert/ColladaSerializer.h b/src/ifcconvert/ColladaSerializer.h
index 796b7a8aed..06fc1d9aa7 100644
--- a/src/ifcconvert/ColladaSerializer.h
+++ b/src/ifcconvert/ColladaSerializer.h
@@ -149,10 +149,8 @@ private:
 		ColladaScene scene;
 	public:
 		ColladaExporter(const std::string& scene_name, const std::string& fn, ColladaSerializer *_serializer)
-			: filename(fn.c_str())
-            /// @todo We could use the double precision feature here, but it seems to bloat the output file quite a bit
-            /// by adding seemingly irrelevant precision, e.g. 0.7 becomes 0.6999999999999999
-			, stream(filename/*, sizeof(real_t) == sizeof(double)*/)
+            : filename(fn)
+            , stream(filename, sizeof(real_t) == sizeof(double)) // utilise Collada stream's double precision feature
 			, geometries(stream, _serializer)
 			, scene(scene_name, stream, _serializer)
 			, materials(stream, _serializer)