diff --git a/stm-firmware/sd.c b/stm-firmware/sd.c
index a8f3220..eee16e2 100644
--- a/stm-firmware/sd.c
+++ b/stm-firmware/sd.c
@@ -37,7 +37,8 @@ bool mount_sd_card_if_avail(FATFS *fs)
 		memset(fs, 0, sizeof(FATFS));
 		sdio_stop_clk();
 		inserted_counter = 0;
-		return false;
+		sd_card_mounted_state = false;
+		goto ret;
 	}
 
 	if (!sdio_check_inserted() && inserted_counter < 255)
@@ -48,12 +49,13 @@ bool mount_sd_card_if_avail(FATFS *fs)
 		res = f_mount(fs, "0:/", 1);
 		if (res == FR_OK) {
 			led_set(1, 1);
-			return true;
+			sd_card_mounted_state = true;
 		} else {
-			return false;
+			sd_card_mounted_state = false;
 		}
 	}
 
+ret:
 	return sd_card_mounted_state;
 }