diff --git a/modules/tabbarDNDObserver.js b/modules/tabbarDNDObserver.js
index 29c549bc..3f484c7f 100644
--- a/modules/tabbarDNDObserver.js
+++ b/modules/tabbarDNDObserver.js
@@ -760,6 +760,9 @@ catch(e) {
 		if (this.isDraggingAllCurrentTabs(draggedTab))
 			return;
 
+		if (aEvent.ctrlKey || aEvent.metaKey)
+			draggedTab.__treestyletab__toBeDuplicated = true;
+
 		b.replaceTabWithWindow(draggedTab);
 	},
  
diff --git a/modules/window.js b/modules/window.js
index 2e2f0948..1fd03522 100644
--- a/modules/window.js
+++ b/modules/window.js
@@ -1574,8 +1574,9 @@ TreeStyleTabWindow.prototype = {
 			}
 			else {
 				let actionInfo = {
-						action : this.kACTIONS_FOR_DESTINATION | this.kACTION_IMPORT
+						action : remoteTab.__treestyletab__toBeDuplicated ? this.kACTION_DUPLICATE : this.kACTION_IMPORT
 					};
+
 				let b = this.browser;
 				let blankTab;
 				this.Deferred
@@ -1591,6 +1592,9 @@ TreeStyleTabWindow.prototype = {
 						remoteWindow = null
 						remoteService = null;
 						remoteMultipleTabService = null;
+					})
+					.error(function(e) {
+						Application.console.log(e+'\n'+e.stack)
 					});
 			}
 			return true;