diff --git a/speaker-test/speaker-test.c b/speaker-test/speaker-test.c
index d3fec2b3a..4bf90e3c6 100644
--- a/speaker-test/speaker-test.c
+++ b/speaker-test/speaker-test.c
@@ -285,7 +285,9 @@ static const char *get_channel_name(int chn)
     return name ? name : "Unknown";
   }
 #endif
-  return gettext(channel_name[chn]);
+  if (chn < MAX_CHANNELS)
+    return gettext(channel_name[chn]);
+  return "Unknown";
 }
 
 static const int	supported_formats[] = {