diff --git a/modules/rostests/winetests/ntdll/om.c b/modules/rostests/winetests/ntdll/om.c
index 3b553a0c750..22592e1709c 100644
--- a/modules/rostests/winetests/ntdll/om.c
+++ b/modules/rostests/winetests/ntdll/om.c
@@ -29,7 +29,7 @@ static HANDLE   (WINAPI *pCreateWaitableTimerA)(SECURITY_ATTRIBUTES*, BOOL, LPCS
 static BOOLEAN  (WINAPI *pRtlCreateUnicodeStringFromAsciiz)(PUNICODE_STRING, LPCSTR);
 static VOID     (WINAPI *pRtlInitUnicodeString)( PUNICODE_STRING, LPCWSTR );
 static VOID     (WINAPI *pRtlFreeUnicodeString)(PUNICODE_STRING);
-static NTSTATUS (WINAPI *pNtCreateEvent) ( PHANDLE, ACCESS_MASK, const POBJECT_ATTRIBUTES, BOOLEAN, BOOLEAN);
+static NTSTATUS (WINAPI *pNtCreateEvent) ( PHANDLE, ACCESS_MASK, const POBJECT_ATTRIBUTES, EVENT_TYPE, BOOLEAN);
 static NTSTATUS (WINAPI *pNtOpenEvent)   ( PHANDLE, ACCESS_MASK, const POBJECT_ATTRIBUTES);
 static NTSTATUS (WINAPI *pNtPulseEvent)  ( HANDLE, PULONG );
 static NTSTATUS (WINAPI *pNtQueryEvent)  ( HANDLE, EVENT_INFORMATION_CLASS, PVOID, ULONG, PULONG );