diff --git a/mythtv/programs/mythwelcome/main.cpp b/mythtv/programs/mythwelcome/main.cpp
@@ -91,10 +91,13 @@ int main(int argc, char **argv)
 
     int facility = cmdline.GetSyslogFacility();
     bool dblog = !cmdline.toBool("nodblog");
+    LogLevel_t level = cmdline.GetLogLevel();
+    if (level == LOG_UNKNOWN)
+        return GENERIC_EXIT_INVALID_CMDLINE;
 
     logfile = cmdline.GetLogFilePath();
     bool propagate = cmdline.toBool("islogpath");
-    logStart(logfile, quiet, facility, dblog, propagate);
+    logStart(logfile, quiet, facility, level, dblog, propagate);
 
     gContext = new MythContext(MYTH_BINARY_VERSION);
     if (!gContext->Init())