diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec
index 98e0fa03945..c2f7bc201bc 100644
--- a/dlls/kernel32/kernel32.spec
+++ b/dlls/kernel32/kernel32.spec
@@ -649,7 +649,7 @@
 @ stdcall GetThreadContext(long ptr)
 @ stdcall GetThreadErrorMode()
 @ stdcall GetThreadId(ptr)
-# @ stub GetThreadIOPendingFlag
+@ stdcall GetThreadIOPendingFlag(long ptr)
 @ stdcall GetThreadLocale()
 @ stdcall GetThreadPriority(long)
 @ stdcall GetThreadPriorityBoost(long ptr)
diff --git a/dlls/kernel32/thread.c b/dlls/kernel32/thread.c
index 691ef027d78..bddf37d3604 100644
--- a/dlls/kernel32/thread.c
+++ b/dlls/kernel32/thread.c
@@ -796,3 +796,13 @@ LANGID WINAPI GetThreadUILanguage( void )
     FIXME(": stub, returning default language.\n");
     return lang;
 }
+
+/***********************************************************************
+ *              GetThreadIOPendingFlag (KERNEL32.@)
+ */
+BOOL WINAPI GetThreadIOPendingFlag( HANDLE thread, PBOOL io_pending )
+{
+    FIXME("%p, %p\n", thread, io_pending);
+    *io_pending = FALSE;
+    return TRUE;
+}
diff --git a/include/winbase.h b/include/winbase.h
index a233a0a9078..1222beca515 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -1775,6 +1775,7 @@ WINBASEAPI DWORD       WINAPI GetTempPathA(DWORD,LPSTR);
 WINBASEAPI DWORD       WINAPI GetTempPathW(DWORD,LPWSTR);
 #define                       GetTempPath WINELIB_NAME_AW(GetTempPath)
 WINBASEAPI DWORD       WINAPI GetThreadId(HANDLE);
+WINBASEAPI BOOL        WINAPI GetThreadIOPendingFlag(HANDLE,PBOOL);
 WINBASEAPI DWORD       WINAPI GetTickCount(void);
 WINBASEAPI ULONGLONG   WINAPI GetTickCount64(void);
 WINBASEAPI DWORD       WINAPI GetTimeZoneInformation(LPTIME_ZONE_INFORMATION);