diff --git a/include/imagehlp.h b/include/imagehlp.h
index 8c8250d1f19..5ee978a3d4c 100644
--- a/include/imagehlp.h
+++ b/include/imagehlp.h
@@ -459,6 +459,8 @@ typedef struct _IMAGEHLP_MODULE64
     BOOL                        TypeInfo;
     BOOL                        SourceIndexed;
     BOOL                        Publics;
+    DWORD                       MachineType;
+    DWORD                       Reserved;
 } IMAGEHLP_MODULE64, *PIMAGEHLP_MODULE64;
 
 typedef struct _IMAGEHLP_MODULEW64
@@ -486,6 +488,8 @@ typedef struct _IMAGEHLP_MODULEW64
     BOOL                        TypeInfo;
     BOOL                        SourceIndexed;
     BOOL                        Publics;
+    DWORD                       MachineType;
+    DWORD                       Reserved;
 } IMAGEHLP_MODULEW64, *PIMAGEHLP_MODULEW64;
 
 typedef struct _IMAGEHLP_LINE {