diff --git a/radio/src/sdcard.cpp b/radio/src/sdcard.cpp
index 9c069c982..07ffe88ad 100644
--- a/radio/src/sdcard.cpp
+++ b/radio/src/sdcard.cpp
@@ -592,7 +592,11 @@ void sdDone()
 
 uint32_t sdMounted()
 {
+#if defined(SIMU)
+  return true;
+#else
   return _g_FATFS_init && (g_FATFS_Obj.fs_type != 0);
+#endif
 }