diff --git a/test/unit_test/static/CMakeLists.txt b/test/unit_test/static/CMakeLists.txt
index d8a6cb04..4429eee4 100644
--- a/test/unit_test/static/CMakeLists.txt
+++ b/test/unit_test/static/CMakeLists.txt
@@ -33,6 +33,7 @@ add_library(
     angular_test.cpp
     cgs_test.cpp
     chrono_test.cpp
+    compare_test.cpp
     concepts_test.cpp
     # custom_rep_test_min_expl.cpp
     custom_rep_test_min_impl.cpp