diff --git a/tools/src/edm4hep2json.cxx b/tools/src/edm4hep2json.cxx
index 7665ab6d6..6225f3055 100644
--- a/tools/src/edm4hep2json.cxx
+++ b/tools/src/edm4hep2json.cxx
@@ -17,8 +17,6 @@ void printHelp() {
                "be processed\n"
             << "  -n/--nevents            maximal number of events to be "
                "processed\n"
-            << "  -f/--frame-name         input frame name\n"
-            << "                            default: \"events\"\n"
             << "  -v/--verbose            be more verbose\n"
             << "  -h/--help               show this help message" << std::endl;
 }