diff --git a/reactos/include/psdk/winnls.h b/reactos/include/psdk/winnls.h
index cfdbd14f3bf..7396f33e33e 100644
--- a/reactos/include/psdk/winnls.h
+++ b/reactos/include/psdk/winnls.h
@@ -637,6 +637,7 @@ typedef NUMBERFMTW NUMBERFMT;
 typedef LPNUMBERFMTW LPNUMBERFMT;
 #define CompareString CompareStringW
 #define EnumCalendarInfo EnumCalendarInfoW
+#define EnumDateFormats EnumDateFormatsW
 #define EnumSystemCodePages EnumSystemCodePagesW
 #define EnumSystemLocales EnumSystemLocalesW
 #define EnumTimeFormats EnumTimeFormatsW
@@ -679,6 +680,7 @@ typedef NUMBERFMTA NUMBERFMT;
 typedef LPNUMBERFMTA LPNUMBERFMT;
 #define CompareString CompareStringA
 #define EnumCalendarInfo EnumCalendarInfoA
+#define EnumDateFormats EnumDateFormatsA
 #define EnumSystemCodePages EnumSystemCodePagesA
 #define EnumSystemLocales EnumSystemLocalesA
 #define EnumTimeFormats EnumTimeFormatsA