diff --git a/client/src/cmdlfem4x50.c b/client/src/cmdlfem4x50.c
index 0e610298f..9993243f4 100644
--- a/client/src/cmdlfem4x50.c
+++ b/client/src/cmdlfem4x50.c
@@ -974,7 +974,7 @@ static int CmdEM4x50Write(const char *Cmd) {
     em4x50_prepare_result(data, addr, addr, words);
     em4x50_print_result(words, addr, addr);
     PrintAndLogEx(SUCCESS, "Write ( " _GREEN_("ok") " )");
-    PrintAndLogEx(HINT, "Try `" _YELLOW_("lf em 4x50 rdbl -a %u") "` - to read your data", addr);
+    PrintAndLogEx(HINT, "Try `" _YELLOW_("lf em 4x50 rdbl -b %u") "` - to read your data", addr);
     PrintAndLogEx(INFO, "Done!");
     return PM3_SUCCESS;
 }