diff --git a/src/vm.c b/src/vm.c
index ae10ed707..c50dd56bf 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1912,7 +1912,6 @@ RETRY_TRY_BLOCK:
       }
 
       /* cfunc epilogue */
-      mrb_assert(mrb->c->ci > mrb->c->cibase);
       mrb_gc_arena_shrink(mrb, ai);
       if (mrb->exc) goto L_RAISE;
       ci = mrb->c->ci;
@@ -1929,6 +1928,7 @@ RETRY_TRY_BLOCK:
           syms = irep->syms;
         }
       }
+      mrb_assert(ci > mrb->c->cibase);
       ci->stack[0] = recv;
       /* pop stackpos */
       ci = cipop(mrb);