diff --git a/src/THcInterface.cxx b/src/THcInterface.cxx
index 887c578e365631a327e1fcc1ad3b40faf65f01f9..765b89aaba71f53172a139ed8482552f7e71b0ed 100644
--- a/src/THcInterface.cxx
+++ b/src/THcInterface.cxx
@@ -73,7 +73,7 @@ THcInterface::THcInterface( const char* appClassName, int* argc, char** argv,
   if( !noLogo )
     PrintLogo();
 
-  SetPrompt("analyzer [%d] ");
+  SetPrompt("analyzerTHcInterface [%d] ");
   gHaVars    = new THaVarList;
   gHcParms    = new THcParmList;
   gHaCuts    = new THaCutList( gHaVars );