diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index c52736fcb56..9d820bffbb0 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2684,6 +2684,15 @@ NTSTATUS WINAPI PsImpersonateClient(PETHREAD Thread, PACCESS_TOKEN Token, BOOLEA
 }
 
 
+/***********************************************************************
+ *           PsRevertToSelf   (NTOSKRNL.EXE.@)
+ */
+void WINAPI PsRevertToSelf(void)
+{
+    FIXME("\n");
+}
+
+
 /***********************************************************************
  *           PsSetCreateProcessNotifyRoutine   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index 0fe0da36d8e..19cde8cf8a4 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -925,7 +925,7 @@
 @ stub PsReturnProcessNonPagedPoolQuota
 @ stub PsReturnProcessPagedPoolQuota
 @ stub PsRevertThreadToSelf
-@ stub PsRevertToSelf
+@ stdcall PsRevertToSelf()
 @ stub PsSetContextThread
 @ stdcall PsSetCreateProcessNotifyRoutine(ptr long)
 @ stdcall PsSetCreateProcessNotifyRoutineEx(ptr long)
diff --git a/include/ddk/ntifs.h b/include/ddk/ntifs.h
index a1ed8475027..abe357fbc9c 100644
--- a/include/ddk/ntifs.h
+++ b/include/ddk/ntifs.h
@@ -131,5 +131,6 @@ typedef struct _FS_FILTER_CALLBACKS
 
 BOOLEAN WINAPI FsRtlIsNameInExpression(PUNICODE_STRING, PUNICODE_STRING, BOOLEAN, PWCH);
 NTSTATUS WINAPI ObQueryNameString(PVOID,POBJECT_NAME_INFORMATION,ULONG,PULONG);
+void WINAPI PsRevertToSelf(void);
 
 #endif