diff --git a/.github/workflows/java-windows.yml b/.github/workflows/java-windows.yml
index 681675b2f..679125063 100644
--- a/.github/workflows/java-windows.yml
+++ b/.github/workflows/java-windows.yml
@@ -25,6 +25,8 @@ jobs:
                     curl -o android.jar -L "https://github.com/Sable/android-platforms/blob/master/android-26/android.jar?raw=true"
                     $file_sha256 = $(certutil -hashfile android.jar sha256)[1] -replace " ",""
                     if ($file_sha256 -Ne "cdc1846376a14b0370cc63454a129606b4a52cc50ada75ef0d4cf956b1ad2daa") {
+                        echo "wrong sha256 for android.jar: $file_sha256";
+                        echo "                    expected: $expected_sha256";
                         exit -1
                     }