diff --git a/xrd.py b/xrd.py
index ad84f4a..f72a908 100644
--- a/xrd.py
+++ b/xrd.py
@@ -88,7 +88,7 @@ def process_command(tef: TEF6686, data: bytes, state: dict, conn: socket.socket)
             out += b"OK\n"
             tef.APPL_Set_OperationMode(False)
             tef.FM_Tune_To(1, state["last_tune"])
-            if (FREQ_NOT_ALLOWED_RANGE and state["last_tune"] >= FREQ_NOT_ALLOWED_RANGE[0] and state["last_tune"] <= FREQ_NOT_ALLOWED_RANGE[1]) or (FREQ_NOT_ALLOWED_LIST and freq in FREQ_NOT_ALLOWED_LIST): tef.AUDIO_Set_Mute(True)
+            if (FREQ_NOT_ALLOWED_RANGE and state["last_tune"] >= FREQ_NOT_ALLOWED_RANGE[0] and state["last_tune"] <= FREQ_NOT_ALLOWED_RANGE[1]) or (FREQ_NOT_ALLOWED_LIST and state["last_tune"] in FREQ_NOT_ALLOWED_LIST): tef.AUDIO_Set_Mute(True)
             else: tef.AUDIO_Set_Mute(False)
         elif cmd.startswith(b"X"):
             tef.APPL_Set_OperationMode(True)