diff --git a/src/bld/java/net/thauvin/erik/MobibotBuild.java b/src/bld/java/net/thauvin/erik/MobibotBuild.java
index 897a966..c95d779 100644
--- a/src/bld/java/net/thauvin/erik/MobibotBuild.java
+++ b/src/bld/java/net/thauvin/erik/MobibotBuild.java
@@ -141,7 +141,10 @@ public class MobibotBuild extends Project {
 
     @Override
     public void clean() throws Exception {
-        FileUtils.deleteDirectory(new File("deploy"));
+        var deploy = new File("deploy");
+        if (deploy.exists()) {
+            FileUtils.deleteDirectory(deploy);
+        }
         super.clean();
     }