diff --git a/lib/features/modeling/behavior/DropOnFlowBehavior.js b/lib/features/modeling/behavior/DropOnFlowBehavior.js
index 28dcf38f..a928d5ea 100644
--- a/lib/features/modeling/behavior/DropOnFlowBehavior.js
+++ b/lib/features/modeling/behavior/DropOnFlowBehavior.js
@@ -50,6 +50,11 @@ function DropOnFlow(eventBus, bpmnRules, modeling) {
       waypointsBefore = waypoints.slice(0, intersection.index);
       waypointsAfter = waypoints.slice(intersection.index + (intersection.bendpoint ? 1 : 0));
 
+      // due to inaccuracy intersection might have been found
+      if (!waypointsBefore.length || !waypointsAfter.length) {
+        return;
+      }
+
       dockingPoint = intersection.bendpoint ? waypoints[intersection.index] : position;
 
       // if last waypointBefore is inside shape's bounds, ignore docking point
@@ -161,4 +166,4 @@ inherits(DropOnFlow, CommandInterceptor);
 
 DropOnFlow.$inject = [ 'eventBus', 'bpmnRules', 'modeling' ];
 
-module.exports = DropOnFlow;
+module.exports = DropOnFlow;
\ No newline at end of file
diff --git a/test/spec/features/modeling/behavior/DropOnFlowBehaviorSpec.js b/test/spec/features/modeling/behavior/DropOnFlowBehaviorSpec.js
index 33607977..4162ab4e 100644
--- a/test/spec/features/modeling/behavior/DropOnFlowBehaviorSpec.js
+++ b/test/spec/features/modeling/behavior/DropOnFlowBehaviorSpec.js
@@ -22,21 +22,6 @@ describe('modeling/behavior - drop on connection', function() {
   beforeEach(bootstrapModeler(diagramXML, { modules: testModules }));
 
 
-  describe('rules', function() {
-
-    it('should be allowed for an IntermediateThrowEvent', inject(function(elementRegistry, bpmnRules, elementFactory) {
-
-      // when
-      var sequenceFlow = elementRegistry.get('SequenceFlow_1');
-      var intermediateThrowEvent = elementFactory.createShape({ type: 'bpmn:IntermediateThrowEvent' });
-
-      // then
-      expect(bpmnRules.canCreate(intermediateThrowEvent, sequenceFlow)).to.be.true;
-    }));
-
-  });
-
-
   describe('execution', function() {
 
     describe('create', function() {
@@ -512,6 +497,34 @@ describe('modeling/behavior - drop on connection', function() {
         }
       ));
 
+
+      it('should not insert on inaccuratly found intersection', inject(function(dragging, move, elementRegistry, selection) {
+
+        // given
+        var intermediateThrowEvent = elementRegistry.get('IntermediateThrowEvent_foo');
+
+        var sequenceFlow = elementRegistry.get('SequenceFlow_1'),
+            sequenceFlowGfx = elementRegistry.getGraphics(sequenceFlow);
+
+        // when
+        selection.select(intermediateThrowEvent);
+
+        move.start(canvasEvent({ x: 0, y: 0 }), intermediateThrowEvent);
+
+        dragging.hover({
+          element: sequenceFlow,
+          gfx: sequenceFlowGfx
+        });
+
+        dragging.move(canvasEvent({ x: 20, y: -90 }));
+
+        dragging.end();
+
+        // then
+        expect(intermediateThrowEvent.incoming).to.have.lengthOf(0);
+        expect(intermediateThrowEvent.outgoing).to.have.lengthOf(0);
+      }));
+
     });
 
   });
@@ -519,6 +532,17 @@ describe('modeling/behavior - drop on connection', function() {
 
   describe('rules', function() {
 
+    it('should be allowed for an IntermediateThrowEvent', inject(function(elementRegistry, bpmnRules, elementFactory) {
+
+      // when
+      var sequenceFlow = elementRegistry.get('SequenceFlow_1');
+      var intermediateThrowEvent = elementFactory.createShape({ type: 'bpmn:IntermediateThrowEvent' });
+
+      // then
+      expect(bpmnRules.canCreate(intermediateThrowEvent, sequenceFlow)).to.be.true;
+    }));
+
+
     it('should not insert participant', inject(
       function(rules, elementRegistry, elementFactory) {