diff --git a/dataflow_cpp/test/dataflow_cpp_test_simple.cc b/dataflow_cpp/test/dataflow_cpp_test_simple.cc
index 8e42488..9babf09 100644
--- a/dataflow_cpp/test/dataflow_cpp_test_simple.cc
+++ b/dataflow_cpp/test/dataflow_cpp_test_simple.cc
@@ -149,7 +149,6 @@ SimpleTest::SimpleTest() {
 void SimpleTest::TestBasic() {
   // All available cores
   embb::base::CoreSet core_set(true);
-  unsigned int num_cores = core_set.Count();
   embb::tasks::Node::Initialize(
     MTAPI_DOMAIN_ID,
     MTAPI_NODE_ID,