diff --git a/Tests/NumLib/TestODEInt.cpp b/Tests/NumLib/TestODEInt.cpp
index ae534260cc25230e23d5742391c5f2231bf9c160..5651ae1da8b474518b556c842bf9260d829dcd9c 100644
--- a/Tests/NumLib/TestODEInt.cpp
+++ b/Tests/NumLib/TestODEInt.cpp
@@ -287,7 +287,7 @@ public:
 
     static void test()
     {
-        for (auto num_timesteps : { 10, 100, 1000 }) {
+        for (auto num_timesteps : { 10u, 100u }) {
             run_test_case<Matrix, Vector, TimeDisc, ODE, NLTag>(num_timesteps, TestParams::name);
         }
     }