diff --git a/radio/src/audio.h b/radio/src/audio.h
index fd5198b91..0aab21eb7 100644
--- a/radio/src/audio.h
+++ b/radio/src/audio.h
@@ -83,6 +83,8 @@ constexpr uint8_t AUDIO_FILENAME_MAXLEN = (AUDIO_LUA_FILENAME_MAXLEN > AUDIO_MOD
   #define AUDIO_BUFFER_COUNT           (10) // simulator needs more buffers for smooth audio
 #elif defined(PCBX12S)
   #define AUDIO_BUFFER_COUNT           (2)  // smaller than Taranis since there is also a buffer on the ADC chip
+#elif defined(PCBPL18)
+  #define AUDIO_BUFFER_COUNT           (10) // PL18 need more buffer for smooth audio
 #else
   #define AUDIO_BUFFER_COUNT           (3)
 #endif