diff --git a/apps/plugin.c b/apps/plugin.c
index 63097a2589..e7758df51c 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -292,8 +292,10 @@ static const struct plugin_api rockbox_api = {
     pcm_set_frequency,
     pcm_is_playing,
     pcm_play_pause,
-    pcm_calculate_peaks,
 #endif
+#endif
+#if CONFIG_CODEC == SWCODEC
+    pcm_calculate_peaks,
 #endif
 
     /* playback control */
diff --git a/apps/plugin.h b/apps/plugin.h
index ed4588d906..df23ed1c00 100644
--- a/apps/plugin.h
+++ b/apps/plugin.h
@@ -346,9 +346,11 @@ struct plugin_api {
     void (*pcm_set_frequency)(unsigned int frequency);
     bool (*pcm_is_playing)(void);
     void (*pcm_play_pause)(bool play);
-    void (*pcm_calculate_peaks)(int *left, int *right);
 #endif
 #endif /* !SIMULATOR */
+#if CONFIG_CODEC == SWCODEC
+    void (*pcm_calculate_peaks)(int *left, int *right);
+#endif
 
     /* playback control */
     void (*PREFIX(audio_play))(long offset);