diff --git a/src/ZrawConverterThread.hpp b/src/ZrawConverterThread.hpp
index a346386..7a58b18 100644
--- a/src/ZrawConverterThread.hpp
+++ b/src/ZrawConverterThread.hpp
@@ -198,6 +198,8 @@ class ZrawConverterThread
 
         std::string err;
         dng_writer.WriteToFile(outputRawFilePath.c_str(), &err);
+
+		return true;
     }
 
     void _thread_func()