diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8ed9695..762d259 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,6 +103,7 @@
     src/plugins_types/ipv4_prefix.c
     src/plugins_types/ipv6_prefix.c
     src/plugins_types/date_and_time.c
+    src/plugins_types/hex_string.c
     src/plugins_types/xpath1.0.c
     src/plugins_types/node_instanceid.c)