diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index 2394d3dfbc..392544dbbf 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -29,7 +29,7 @@ jpeg.c
 
 #ifndef OLYMPUS_MROBE_500
 
-#if CONFIG_CODEC == SWCODEC
+#if (CONFIG_CODEC == SWCODEC) || !defined(SIMULATOR)
 metronome.c
 #endif
 
diff --git a/apps/plugins/metronome.c b/apps/plugins/metronome.c
index bd99ce2ce3..4b345df460 100644
--- a/apps/plugins/metronome.c
+++ b/apps/plugins/metronome.c
@@ -113,7 +113,7 @@ int bpm_step_counter = 0;
 
 void callback(unsigned char** start, size_t* size){
     (void)start; /* unused parameter, avoid warning */
-    *size = NULL; /* end of data */
+    *size = 0; /* end of data */
     sound_active = false;
     rb->led(0);
 }