diff --git a/CMakeLists.txt b/CMakeLists.txt
index 403a6b0..31662ba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -157,6 +157,7 @@
     src/hash_table.c
     src/set.c
     src/context.c
+    src/tree_schema.c
     src/parser_yang.c
     src/xml.c)