diff --git a/scripts/create-gitea-release.js b/scripts/create-gitea-release.js
index 8150d76..ffd8a1b 100644
--- a/scripts/create-gitea-release.js
+++ b/scripts/create-gitea-release.js
@@ -16,8 +16,15 @@ if (!version) {
 // Load build number from BUILD_NUMBER file
 let buildNumber = '0';
 try {
-  buildNumber = (await fs.readFile('BUILD_NUMBER', 'utf8')).trim();
-  if (!buildNumber) buildNumber = '0';
+  rawBuild = (await fs.readFile('BUILD_NUMBER', 'utf8')).trim();
+  if (rawBuild) {
+    const [numPart, namePart] = rawBuild.split('-');
+    const num = parseInt(numPart, 10);
+
+    if (!isNaN(num) && namePart) {
+      buildNumber = `${num - 1}-${namePart}`;
+    }
+  }
 } catch {
   console.warn('BUILD_NUMBER file not found, defaulting to 0');
 }