diff --git a/tools/winapi/win32.api b/tools/winapi/win32.api
index 5041168bc0c..0f6780a7992 100644
--- a/tools/winapi/win32.api
+++ b/tools/winapi/win32.api
@@ -60,6 +60,7 @@ TRUSTEE_FORM
 TRUSTEE_TYPE
 UINT
 ULONG
+WELL_KNOWN_SID_TYPE
 WORD
 unsigned int
 
@@ -151,6 +152,7 @@ PTRUSTEEA
 PTRUSTEEW
 PUCHAR
 PULONG
+PUNICODE_STRING
 PVALENTA
 PVALENTW
 PVOID
@@ -158,13 +160,13 @@ PVOID *
 SC_LOCK
 SECURITY_ATTRIBUTES *
 WMIDPREQUEST
+struct ustring *
 unsigned char *
 
 %str
 
 LPCSTR
 LPSTR
-PCHAR
 
 %void