diff --git a/dlls/msvcrt/file.c b/dlls/msvcrt/file.c
index 98c800c2bd3..146e0f31276 100644
--- a/dlls/msvcrt/file.c
+++ b/dlls/msvcrt/file.c
@@ -3079,6 +3079,15 @@ int CDECL MSVCRT_wprintf(const MSVCRT_wchar_t *format, ...)
     return res;
 }
 
+/*********************************************************************
+ *		_getmaxstdio (MSVCRT.@)
+ */
+int CDECL _getmaxstdio(void)
+{
+    FIXME("stub, always returns 512\n");
+    return 512;
+}
+
 /*********************************************************************
  *		__pioinfo (MSVCRT.@)
  * FIXME: see MSVCRT_MAX_FILES define.
diff --git a/dlls/msvcrt/msvcrt.spec b/dlls/msvcrt/msvcrt.spec
index 5f4b61d98a4..6a467988543 100644
--- a/dlls/msvcrt/msvcrt.spec
+++ b/dlls/msvcrt/msvcrt.spec
@@ -260,7 +260,7 @@
 @ cdecl _getdllprocaddr(long str long)
 @ cdecl _getdrive()
 @ cdecl _getdrives() kernel32.GetLogicalDrives
-@ stub _getmaxstdio #()
+@ cdecl _getmaxstdio()
 @ cdecl _getmbcp()
 @ cdecl _getpid() kernel32.GetCurrentProcessId
 @ stub _getsystime #(ptr)