--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,5 +65,5 @@
 cmake.verbose = true
 logging.level = "INFO"
 
-#[tool.scikit-build.cmake.define]
-#WITH_TESTS = "ON"
+[tool.scikit-build.cmake.define]
+WITH_TESTS = "ON"