diff --git a/tests/validation/CL/DepthConcatenateLayer.cpp b/tests/validation/CL/DepthConcatenateLayer.cpp
index beda637..8cbfda3 100644
--- a/tests/validation/CL/DepthConcatenateLayer.cpp
+++ b/tests/validation/CL/DepthConcatenateLayer.cpp
@@ -68,6 +68,7 @@
     inputs_vector_info.emplace_back(std::move(input_info2));
 
     std::vector<ITensorInfo *> inputs_vector_info_raw;
+    inputs_vector_info_raw.reserve(inputs_vector_info.size());
     for(auto &input : inputs_vector_info)
     {
         inputs_vector_info_raw.emplace_back(&input);