diff --git a/src/ui/gwt/src/org/grammaticalframework/ui/gwt/client/QueryPanel.java b/src/ui/gwt/src/org/grammaticalframework/ui/gwt/client/QueryPanel.java
index 7f1396542..25a278650 100644
--- a/src/ui/gwt/src/org/grammaticalframework/ui/gwt/client/QueryPanel.java
+++ b/src/ui/gwt/src/org/grammaticalframework/ui/gwt/client/QueryPanel.java
@@ -110,6 +110,7 @@ public class QueryPanel extends Composite {
 					depth = Integer.parseInt(depthBox.getText());
 					limit = Integer.parseInt(limitBox.getText());
 				} catch (NumberFormatException e) {
+					statusPopup.showError("Invalid depth/limit parameter", e);
 					return;
 				}