diff --git a/build.gradle b/build.gradle
index 27106c2f57..1b6977ef8f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -115,7 +115,7 @@ allprojects{
                 output += name.substring("bundle".length() + 1, name.lastIndexOf('.')) + "\n"
             }
             new File(project(':core').projectDir, 'assets/locales').text = output
-            new File(project(':core').projectDir, 'assets/basepartnames').text = new File(project(':core').projectDir, 'assets/baseparts/').list().sort().join("\n")
+            new File(project(':core').projectDir, 'assets/basepartnames').text = new File(project(':core').projectDir, 'assets/baseparts/').list().sort().findAll{f -> f.endsWith(".msch")}.join("\n")
         }
 
         writeVersion = {