diff --git a/lib/stackwalker_win.cpp b/lib/stackwalker_win.cpp
index c17aac3d98..c9a8907d6a 100644
--- a/lib/stackwalker_win.cpp
+++ b/lib/stackwalker_win.cpp
@@ -174,6 +174,7 @@ DWORD64
     DWORD64 Address
     );
 
+typedef
 DWORD64
 (__stdcall *PTRANSLATE_ADDRESS_ROUTINE64)(
     HANDLE    hProcess,