diff --git a/src/tool/Tool.js b/src/tool/Tool.js
index 0717fccd..3a5a9f90 100644
--- a/src/tool/Tool.js
+++ b/src/tool/Tool.js
@@ -45,7 +45,8 @@ var Tool = this.Tool = ToolHandler.extend(new function() {
 					// If the event was triggered by a touch screen device,
 					// prevent the default behaviour, as it will otherwise
 					// scroll the page:
-					if (event && event.targetTouches)
+					var touchDevice = event && event.targetTouches;
+					if (touchDevice)
 						event.preventDefault();
 					var point = event && viewToArtwork(event, that._document);
 					// If there is only an onMouseMove handler, call it when
@@ -58,7 +59,7 @@ var Tool = this.Tool = ToolHandler.extend(new function() {
 					} else if (!dragging || onlyMove) {
 						that.onHandleEvent('mousemove', point, event);
 					}
-					if (that.onMouseMove || that.onMouseDrag)
+					if (that.onMouseMove || (touchDevice && that.onMouseDrag))
 						that._document.redraw();
 				},