diff --git a/boards/.c31.yml b/boards/.c31.yml
index 3dc2c481a593180305c966827e67ca4a7f49ceac..b904df1b63e2f3c25531cbd508c3aeafbbbddc0f 100644
--- a/boards/.c31.yml
+++ b/boards/.c31.yml
@@ -14,6 +14,6 @@ deploy-edgehog-c31:
      artifacts: true
   variables: &deploy-edgehog-c31
       <<: *build-edgehog-c31
-      UBOOT_FILE: u-boot.bin
+      UBOOT_FILE: u-boot.img
       KERNEL_FILE: Image
       AZURE_PATH: rockchip/c31
\ No newline at end of file
diff --git a/manifest-pipeline-yocto.yml b/manifest-pipeline-yocto.yml
index 7c1ca68f2df2e7d78cfb0d40024226930489592e..ae6e71967ade8c84abf4a3d3c48b9c00a322d20b 100644
--- a/manifest-pipeline-yocto.yml
+++ b/manifest-pipeline-yocto.yml
@@ -269,7 +269,7 @@ retrigger:
          echo $ART_PATH
          ls -la $ART_PATH
          find $ART_PATH -iname $UBOOT_FILE -exec cp -L {} $BASE_DIRECTORY/ \;
-         echo "UBOOT_FILE"
+         echo "$UBOOT_FILE"
          ls -la
          tar -czvf $BASE_DIRECTORY/$uboot_filename -C $BASE_DIRECTORY $UBOOT_FILE
          ls -la