diff --git a/alib2std/test-src/extensions/UtilityTest.cpp b/alib2std/test-src/extensions/UtilityTest.cpp
index 6a77be3d31b590c9805dcd6a4d6f24d09fd168b6..cccc2a7ebd41c349a9a9e5a6d047e0dc1ee96d6b 100644
--- a/alib2std/test-src/extensions/UtilityTest.cpp
+++ b/alib2std/test-src/extensions/UtilityTest.cpp
@@ -42,7 +42,7 @@ TEST_CASE ( "Utility", "[unit][std][bits]" ) {
 		}
 
 		{
-			auto const t = std::array<int, 4>{{0,1,2,3}};
+			auto const t = std::array<std::size_t, 4>{{0,1,2,3}};
 
 			auto lambda = [ & ] ( auto I ) {
 				CHECK ( std::get < decltype ( I )::value > ( t ) == I );