diff --git a/scripts/jenkins/lib/build.groovy b/scripts/jenkins/lib/build.groovy
index b98df6921e59d36048fa076ca698bda78423af11..2b4de04606062fe8d04b175d25b66f4addea556d 100644
--- a/scripts/jenkins/lib/build.groovy
+++ b/scripts/jenkins/lib/build.groovy
@@ -11,7 +11,7 @@ def win(buildDir, target = null) {
     targetString = ""
     if (target == null && helper.isRelease())
         targetString = "--target package"
-    else
+    else if (target != null)
         targetString = "--target ${target}"
 
     vcvarsallParam = "amd64"