1 files changed, 2 insertions, 1 deletions
diff --git a/thunk.c b/thunk.c
index 7331aeb477..04f5f869c4 100644
--- a/thunk.c
+++ b/thunk.c
@@ -113,7 +113,8 @@ void thunk_register_struct(int id, const char *name, const argtype *types)
     }
 }
 
-void thunk_register_struct_direct(int id, const char *name, StructEntry *se1)
+void thunk_register_struct_direct(int id, const char *name,
+                                  const StructEntry *se1)
 {
     StructEntry *se;
     se = struct_entries + id;