diff --git a/CMakeLists.txt b/CMakeLists.txt
index 35da8e83ce52be1ab2837e7e8e715312ee9155e8..b5e0e5972ee6deea5194343833f5f8777793f784 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,7 +18,8 @@ set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${dialect}")
 include_directories(src)
 set(src_io
         src/scm_io_plt.f90
-        src/io.f90)
+        src/io.f90
+        src/io_metadata.f90)
 
 
 add_library(test_io ${src_io})