1 files changed, 4 insertions, 0 deletions
diff --git a/js/Linear/DERIV.js b/js/Linear/DERIV.js
index 55cc8833..136a70f5 100644
--- a/js/Linear/DERIV.js
+++ b/js/Linear/DERIV.js
@@ -21,4 +21,8 @@ function DERIV() {
     DERIV.prototype.set = function DERIV() {
         return new BasicBlock(this.x);
     }
+    DERIV.prototype.get_popup_title = function DERIV() {
+        var set_param_popup_title = "Set parameters";
+        return set_param_popup_title;
+    }
 }