diff --git a/tests/src/assembler_zc_tests.cpp b/tests/src/assembler_zc_tests.cpp
index b92de79..d8e7702 100644
--- a/tests/src/assembler_zc_tests.cpp
+++ b/tests/src/assembler_zc_tests.cpp
@@ -236,7 +236,7 @@ TEST_CASE("CM.JT", "[Zc]") {
     }
 }
 
-constexpr std::array stack_adj_bases_rv64{
+constexpr std::array<int, 16> stack_adj_bases_rv64{
     0, 0, 0, 0, 16, 16, 32, 32,
     48, 48, 64, 64, 80, 80, 96, 112,
 };