diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/AbstractMi1FirmwareInfo.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/AbstractMi1FirmwareInfo.java
index e274c9ce4..627ea19fb 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/AbstractMi1FirmwareInfo.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/AbstractMi1FirmwareInfo.java
@@ -41,10 +41,12 @@ public abstract class AbstractMi1FirmwareInfo extends AbstractMiFirmwareInfo {
         return 0;
     }
 
+    @Override
     public int getFirmwareLength() {
         return wholeFirmwareBytes.length;
     }
 
+    @Override
     public int getFirmwareVersion() {
         return (wholeFirmwareBytes[getOffsetFirmwareVersionMajor()] << 24)
                 | (wholeFirmwareBytes[getOffsetFirmwareVersionMinor()] << 16)
@@ -89,6 +91,7 @@ public abstract class AbstractMi1FirmwareInfo extends AbstractMiFirmwareInfo {
         return false;
     }
 
+    @Override
     protected boolean isHeaderValid() {
         // TODO: not sure if this is a correct check!
         return ArrayUtils.equals(SINGLE_FW_HEADER, wholeFirmwareBytes, SINGLE_FW_HEADER_OFFSET, SINGLE_FW_HEADER_OFFSET + SINGLE_FW_HEADER.length);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/Mi1SFirmwareInfo.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/Mi1SFirmwareInfo.java
index 8ef2e65da..8de13acd4 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/Mi1SFirmwareInfo.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/Mi1SFirmwareInfo.java
@@ -38,6 +38,7 @@ public class Mi1SFirmwareInfo extends CompositeMiFirmwareInfo {
         return false;
     }
 
+    @Override
     protected boolean isHeaderValid() {
         // TODO: not sure if this is a correct check!
         return ArrayUtils.equals(DOUBLE_FW_HEADER, wholeFirmwareBytes, DOUBLE_FW_HEADER_OFFSET, DOUBLE_FW_HEADER_OFFSET + DOUBLE_FW_HEADER.length);