diff --git a/CMakeLists.txt b/CMakeLists.txt
index 687a57c..03270bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,7 +65,7 @@ if(USE_EIGEN3)
         )
         FetchContent_MakeAvailable(eigen)
 
-        # find_package(Eigen3 REQUIRED CONFIG)
+        find_package(Eigen3 REQUIRED CONFIG)
     endif()
 endif()