diff --git a/tensorflow/lite/kernels/test_util.h b/tensorflow/lite/kernels/test_util.h
index 3d5df1a9cff..f0f02d25add 100644
--- a/tensorflow/lite/kernels/test_util.h
+++ b/tensorflow/lite/kernels/test_util.h
@@ -461,7 +461,7 @@ class SingleOpModel {
   std::vector<T> ExtractVector(int index) const {
     const T* v = interpreter_->typed_tensor<T>(index);
     const auto* tensor = interpreter_->tensor(index);
-    CHECK(v);
+    CHECK(v) << "Could not extract vector at index: " << index;
     int tensor_size;
     if (tensor->sparsity) {
       // Getting the size of the sparse buffer this way is based on the