1 files changed, 2 insertions, 2 deletions
diff --git a/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.h b/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.h
index 7c21de317..0c6505737 100644
--- a/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.h
+++ b/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.h
@@ -103,8 +103,8 @@ typedef struct mrb_debug_breakpoint {
 } mrb_debug_breakpoint;
 
 typedef struct mrb_debug_context {
-  struct mrb_irep *root_irep;
-  struct mrb_irep *irep;
+  const struct mrb_irep *root_irep;
+  const struct mrb_irep *irep;
   const mrb_code *pc;
   mrb_value *regs;