diff --git a/0_cmake_library/main.cmake b/0_cmake_library/main.cmake
index aae65ab..32dbd6e 100644
--- a/0_cmake_library/main.cmake
+++ b/0_cmake_library/main.cmake
@@ -497,6 +497,7 @@ function(append_glob_source src_var_name)
                 "${_dir}/*.h"
                 "${_dir}/*.hpp"
                 "${_dir}/*.ipp"
+                "${_dir}/*.inl"
                 "${_dir}/*.c"
                 "${_dir}/*.cpp"
                 "${_dir}/*.cxx"