diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java
index 27c0b59321..17c56bd9f7 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java	
@@ -5107,6 +5107,7 @@ boolean sendMouseEvent (int type, int button, int count, int detail, boolean sen
 						flushQueueOnDnd();
 					} else {
 						dragDetectionQueue.add(event);
+						return true;
 					}
 					break;
 				case SWT.MouseUp: