diff --git a/modules/dnn/src/dnn.cpp b/modules/dnn/src/dnn.cpp
index 26ff469e18..7cfecf7c12 100644
--- a/modules/dnn/src/dnn.cpp
+++ b/modules/dnn/src/dnn.cpp
@@ -1266,8 +1266,11 @@ struct Net::Impl
 
                         if ( preferableTarget == DNN_TARGET_OPENCL )
                         {
-                            nextData = &layers[activData->consumers[0].lid];
-                            lpNext = LayerPin(activData->consumers[0].lid, 0);
+                            if ( !activData->consumers.empty() )
+                            {
+                                nextData = &layers[activData->consumers[0].lid];
+                                lpNext = LayerPin(activData->consumers[0].lid, 0);
+                            }
                         }
                     }
                 }