diff --git a/firmware/chibios-portapack/ext/fatfs/src/ff.c b/firmware/chibios-portapack/ext/fatfs/src/ff.c
index 862f0a56..960d7af2 100644
--- a/firmware/chibios-portapack/ext/fatfs/src/ff.c
+++ b/firmware/chibios-portapack/ext/fatfs/src/ff.c
@@ -1060,6 +1060,7 @@ DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluste
 				}
 			}
 			/* go to default */
+            __attribute__ ((fallthrough));
 #endif
 		default:
 			val = 1;	/* Internal error */