diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d6002db..92bf3da5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,9 +44,9 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 set(GEDS_EXTRA_COMPILER_FLAGS -Wall -Wextra -Werror) # -Wpedantic # error: ISO C++ does not support ‘__int128’ for ‘type name’ [-Werror=pedantic]
 set(GEDS_EXTRA_LINKER_FLAGS)
 
-# if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-#     set(GEDS_EXTRA_COMPILER_FLAGS ${GEDS_EXTRA_COMPILER_FLAGS} -Wpedantic)
-# endif()
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    set(GEDS_EXTRA_COMPILER_FLAGS ${GEDS_EXTRA_COMPILER_FLAGS} -Wpedantic)
+endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "12.3.0" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "12.0.0")