diff --git a/metadata/com.wmstein.transektcount.yml b/metadata/com.wmstein.transektcount.yml
index 3404fa93b0..52977c641b 100644
--- a/metadata/com.wmstein.transektcount.yml
+++ b/metadata/com.wmstein.transektcount.yml
@@ -329,6 +329,10 @@ Builds:
     versionCode: 338
     commit: a28cf4875310eb958613ada33ef4078d32dd51b8
     subdir: transektcount
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-17-jdk-headless
+      - update-java-alternatives -a
     gradle:
       - yes