diff --git a/mqtt_srv.py b/mqtt_srv.py
index 8319cf2..4d34c70 100755
--- a/mqtt_srv.py
+++ b/mqtt_srv.py
@@ -685,7 +685,8 @@ def on_message(client, userdata, msg):
                 try:
                     output = subprocess.run(["amixer", "sset", "Master", "mute"], check=True)
                     writeLog(output)
-                except:
+                except  subprocess.CalledProcessError as e:
+                    writeLog(e)
                     writeLog("Failed to mute/unmute")
             writeLog(myCmd)
             output = subprocess.Popen(myCmd, shell=True)