diff --git a/modules/dnn/src/onnx/onnx_importer.cpp b/modules/dnn/src/onnx/onnx_importer.cpp
index 32b56278bd..6da2c5edf6 100644
--- a/modules/dnn/src/onnx/onnx_importer.cpp
+++ b/modules/dnn/src/onnx/onnx_importer.cpp
@@ -851,7 +851,7 @@ void ONNXImporter::parseSplit(LayerParams& layerParams, const opencv_onnx::NodeP
         std::vector<int> slicePoints(numSplits - 1, splits.get<int>(0));
         for (int i = 1; i < splits.size() - 1; ++i)
         {
-            slicePoints[i] = slicePoints[i - 1] + splits.get<int>(i - 1);
+            slicePoints[i] = slicePoints[i - 1] + splits.get<int>(i);
         }
         layerParams.set("slice_point", DictValue::arrayInt(&slicePoints[0], slicePoints.size()));
     }
diff --git a/modules/dnn/test/test_onnx_importer.cpp b/modules/dnn/test/test_onnx_importer.cpp
index a446a37c79..983f72d6d6 100644
--- a/modules/dnn/test/test_onnx_importer.cpp
+++ b/modules/dnn/test/test_onnx_importer.cpp
@@ -617,6 +617,7 @@ TEST_P(Test_ONNX_layers, Split)
     testONNXModels("split_2");
     testONNXModels("split_3");
     testONNXModels("split_4");
+    testONNXModels("split_sizes");
 }
 
 TEST_P(Test_ONNX_layers, Slice)