diff --git a/tools/clog-builder-eval.lisp b/tools/clog-builder-eval.lisp
index baa1e64..d6cc75d 100644
--- a/tools/clog-builder-eval.lisp
+++ b/tools/clog-builder-eval.lisp
@@ -16,6 +16,7 @@
                              (setf r (or result ""))
                              (bordeaux-threads:signal-semaphore sem))
                      :title title
+                     :modal nil
                      :width 640
                      :height 480)
        (bordeaux-threads:wait-on-semaphore sem)