diff --git a/wsutil/CMakeLists.txt b/wsutil/CMakeLists.txt
index a55086c..0149801 100644
--- a/wsutil/CMakeLists.txt
+++ b/wsutil/CMakeLists.txt
@@ -80,6 +80,7 @@ set(WSUTIL_PUBLIC_HEADERS
 	ws_roundup.h
 	ws_strptime.h
 	wsgcrypt.h
+	wstmpdir.h
 	wsjson.h
 	wslog.h
 	xtea.h
@@ -135,6 +136,7 @@ set(WSUTIL_COMMON_FILES
 	ws_pipe.c
 	ws_strptime.c
 	wsgcrypt.c
+	wstmpdir.c
 	wsjson.c
 	wslog.c
 	xtea.c