diff --git a/reactos/include/psdk/winbase.h b/reactos/include/psdk/winbase.h
index a0c9b9505b3..4a4ded40366 100644
--- a/reactos/include/psdk/winbase.h
+++ b/reactos/include/psdk/winbase.h
@@ -1100,7 +1100,9 @@ LONG WINAPI _llseek(HFILE,LONG,int);
 HFILE WINAPI _lopen(LPCSTR,int);
 UINT WINAPI _lread(HFILE,LPVOID,UINT);
 UINT WINAPI _lwrite(HFILE,LPCSTR,UINT);
+#ifndef AbnormalTermination
 #define AbnormalTermination() FALSE
+#endif
 BOOL WINAPI AccessCheck(PSECURITY_DESCRIPTOR,HANDLE,DWORD,PGENERIC_MAPPING,PPRIVILEGE_SET,PDWORD,PDWORD,PBOOL);
 BOOL WINAPI AccessCheckAndAuditAlarmA(LPCSTR,LPVOID,LPSTR,LPSTR,PSECURITY_DESCRIPTOR,DWORD,PGENERIC_MAPPING,BOOL,PDWORD,PBOOL,PBOOL);
 BOOL WINAPI AccessCheckAndAuditAlarmW(LPCWSTR,LPVOID,LPWSTR,LPWSTR,PSECURITY_DESCRIPTOR,DWORD,PGENERIC_MAPPING,BOOL,PDWORD,PBOOL,PBOOL);