diff --git a/build-debian-packages-pipeline.groovy b/build-debian-packages-pipeline.groovy
index 91ddb16..bc4ed38 100644
--- a/build-debian-packages-pipeline.groovy
+++ b/build-debian-packages-pipeline.groovy
@@ -63,7 +63,7 @@
     stage("build-binary") {
       dsc = sh script: "ls build-area/*.dsc", returnStdout: true
       if(common.validInputParam("PRE_BUILD_SCRIPT")) {
-        writeFile([file:"pre-build-script.sh", text: env['PRE_BUILD_SCRIPT']])
+        writeFile([file:"pre_build_script.sh", text: env['PRE_BUILD_SCRIPT']])
       }
       debian.buildBinary(
         dsc.trim(),