diff --git a/reactos/dll/win32/dbghelp/dbghelp.spec b/reactos/dll/win32/dbghelp/dbghelp.spec
index 8fdd97c82ae..2f39f63391e 100644
--- a/reactos/dll/win32/dbghelp/dbghelp.spec
+++ b/reactos/dll/win32/dbghelp/dbghelp.spec
@@ -21,7 +21,7 @@
 @ stdcall MakeSureDirectoryPathExists(str)
 @ stdcall MapDebugInformation(long str str long)
 @ stub MiniDumpReadDumpStream
-@ stub MiniDumpWriteDump
+@ stdcall MiniDumpWriteDump(ptr long ptr long long long long)
 @ stdcall SearchTreeForFile(str str str)
 @ stdcall StackWalk(long long long ptr ptr ptr ptr ptr ptr)
 @ stub StackWalk64