diff --git a/rfb/SFTMsgReader.cxx b/rfb/SFTMsgReader.cxx
index b88467b..22787bf 100644
--- a/rfb/SFTMsgReader.cxx
+++ b/rfb/SFTMsgReader.cxx
@@ -70,7 +70,7 @@
   return readU8U16U32StringMsg(&compressedLevel, pFilenameSize, pPosition, pFilename);
 }
     
-void *
+char *
 SFTMsgReader::readFileUploadData(unsigned int *pDataSize, unsigned int *pModTime)
 {
   unsigned char compressedLevel = m_pIS->readU8();