diff --git a/src/Network/fgcom.cxx b/src/Network/fgcom.cxx
index 4e7768b..9c85420 100644
--- a/src/Network/fgcom.cxx
+++ b/src/Network/fgcom.cxx
@@ -651,8 +651,8 @@ void FGCom::valueChanged(SGPropertyNode *prop)
 
           SG_LOG(SG_SOUND, SG_ALERT, "FGCom: PTT active: " << soundpath);
           
-          std::string urlcmd = "ffplay -nodisp -autoexit -loglevel quiet -i ";
-          urlcmd.append(soundpath);
+          std::string urlcmd = "ffplay -nodisp -autoexit -loglevel quiet -i " + soundpath;
+
           SG_LOG(SG_SOUND, SG_INFO, "CMD :" << urlcmd );
           system(urlcmd.c_str());