diff --git a/FATFS/shimatta_sdio_driver/shimatta_sdio-driver.c b/FATFS/shimatta_sdio_driver/shimatta_sdio-driver.c
index 4a61400..8936077 100644
--- a/FATFS/shimatta_sdio_driver/shimatta_sdio-driver.c
+++ b/FATFS/shimatta_sdio_driver/shimatta_sdio-driver.c
@@ -137,7 +137,8 @@ int SDIO_getResp(uint8_t expectedCMD, uint8_t typeOfAns, uint32_t *responseBuffe
             if(expectedCMD == 41) {
                 //This command does not have a CRC...Doushite....
                 break;//Hopefully the response is correct. Even without CRC....
-            }
+            } else 
+                return CCRCFAIL; 
         }