diff --git a/Jenkinsfile b/Jenkinsfile
index 2e6c6c2..aa32249 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,7 +10,7 @@ pipeline {
                     fullfilename=\$(basename -- \${files[0]})
                     noext=\${fullfilename%.*}
 
-                    mv fullfilename $noext-$BUILD_NUMBER.nupkg
+                    mv fullfilename \$noext-\$BUILD_NUMBER.nupkg
 
                     files=null
                     fullfilename=null