diff --git a/src/Unittests/unittests_smart_handles.cc b/src/Unittests/unittests_smart_handles.cc
index 65aa80c0..2979b327 100644
--- a/src/Unittests/unittests_smart_handles.cc
+++ b/src/Unittests/unittests_smart_handles.cc
@@ -415,7 +415,11 @@ TEST_F(OpenMeshSmartHandles, ComplicatedNavigtaion)
  */
 TEST_F(OpenMeshSmartHandles, Performance)
 {
+#if DEBUG
+  int n_tests = 300000;
+#else
   int n_tests = 10000000;
+#endif
 
   auto t_before_old = std::chrono::high_resolution_clock::now();