diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index eb984bd8388..189f303d6ab 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2439,16 +2439,6 @@ LONG WINAPI KeResetEvent( PRKEVENT Event )
 }
 
 
-/***********************************************************************
- *           KeSetEvent   (NTOSKRNL.EXE.@)
- */
-LONG WINAPI KeSetEvent( PRKEVENT Event, KPRIORITY Increment, BOOLEAN Wait )
-{
-    FIXME("(%p, %d, %d): stub\n", Event, Increment, Wait);
-    return 0;
-}
-
-
 /***********************************************************************
  *           KeSetPriorityThread   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
index e7ff7ec6f90..6bea027bace 100644
--- a/dlls/ntoskrnl.exe/sync.c
+++ b/dlls/ntoskrnl.exe/sync.c
@@ -125,3 +125,22 @@ void WINAPI KeInitializeEvent( PRKEVENT event, EVENT_TYPE type, BOOLEAN state )
     event->Header.WaitListHead.Blink = NULL;
     event->Header.WaitListHead.Flink = NULL;
 }
+
+/***********************************************************************
+ *           KeSetEvent   (NTOSKRNL.EXE.@)
+ */
+LONG WINAPI KeSetEvent( PRKEVENT event, KPRIORITY increment, BOOLEAN wait )
+{
+    HANDLE handle = event->Header.WaitListHead.Blink;
+    LONG ret;
+
+    TRACE("event %p, increment %d, wait %u.\n", event, increment, wait);
+
+    EnterCriticalSection( &sync_cs );
+    ret = InterlockedExchange( &event->Header.SignalState, TRUE );
+    if (handle)
+        SetEvent( handle );
+    LeaveCriticalSection( &sync_cs );
+
+    return ret;
+}