diff --git a/reactos/dll/cpl/timedate/CMakeLists.txt b/reactos/dll/cpl/timedate/CMakeLists.txt
index 9dbc98ee293..32727d391ce 100644
--- a/reactos/dll/cpl/timedate/CMakeLists.txt
+++ b/reactos/dll/cpl/timedate/CMakeLists.txt
@@ -27,4 +27,5 @@ add_importlibs(timedate
     msvcrt
     kernel32)
 
+add_pch(timedate timedate.h)
 add_cd_file(TARGET timedate DESTINATION reactos/system32 FOR all)
diff --git a/reactos/dll/cpl/timedate/timedate.h b/reactos/dll/cpl/timedate/timedate.h
index ced96a12eec..97e6acb09ae 100644
--- a/reactos/dll/cpl/timedate/timedate.h
+++ b/reactos/dll/cpl/timedate/timedate.h
@@ -1,5 +1,3 @@
-#pragma once
-
 #include <windows.h>
 #include <windowsx.h>
 #include <stdio.h>
diff --git a/reactos/dll/cpl/timedate/timedate.rbuild b/reactos/dll/cpl/timedate/timedate.rbuild
index a611b2a74ea..dd88c4c9e44 100644
--- a/reactos/dll/cpl/timedate/timedate.rbuild
+++ b/reactos/dll/cpl/timedate/timedate.rbuild
@@ -17,4 +17,5 @@
 	<file>timedate.c</file>
 	<file>timezone.c</file>
 	<file>timedate.rc</file>
+	<pch>timedate.h</pch>
 </module>