diff --git a/tools/release/Bootstrap/Step/Build.pm b/tools/release/Bootstrap/Step/Build.pm
index eb2a3cb1278..7a093d744bb 100644
--- a/tools/release/Bootstrap/Step/Build.pm
+++ b/tools/release/Bootstrap/Step/Build.pm
@@ -39,7 +39,7 @@ sub Verify {
     my $this = shift;
 
     my $config = new Bootstrap::Config();
-    my $buildDir = $config->Get(var => 'buildDir');
+    my $buildDir = $config->Get(sysvar => 'buildDir');
     my $productTag = $config->Get(var => 'productTag');
     my $rc = $config->Get(var => 'rc');
     my $rcTag = $productTag.'_RC'.$rc;