diff --git a/CMakeLists.txt b/CMakeLists.txt
index c719785..3bfd50b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ endif ()
 if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
     if (EXISTS /usr/bin/mold)
         message(STATUS "Mold found, using as linker")
-        add_link_options(-fuse-ld=mold)
+        add_link_options(-fuse-ld=mold -flto)
     else()
         add_link_options(-fuse-ld=lld)
     endif()