diff --git a/apps/plugins/test_disk.c b/apps/plugins/test_disk.c
index 7c46101ebc..332cc1cb08 100644
--- a/apps/plugins/test_disk.c
+++ b/apps/plugins/test_disk.c
@@ -28,11 +28,11 @@
 #define TEST_FILE   TESTBASEDIR "/test_disk.tmp"
 #define FRND_SEED   0x78C3     /* arbirary */
 
-//#if (CONFIG_STORAGE & STORAGE_MMC)
+#if (CONFIG_STORAGE & STORAGE_MMC)
 #define TEST_SIZE (20*1024*1024)
-//#else
-//#define TEST_SIZE (300*1024*1024)
-//#endif
+#else
+#define TEST_SIZE (300*1024*1024)
+#endif
 #define TEST_TIME 10 /* in seconds */
 
 static unsigned char* audiobuf;