diff --git a/libguile/continuations.c b/libguile/continuations.c
index 479266e99..3f86c6bd4 100644
--- a/libguile/continuations.c
+++ b/libguile/continuations.c
@@ -87,7 +87,7 @@ struct goto_continuation_code goto_continuation_code = {
     /* mcode = */ 0,
     /* counter = */ 0,
     /* start = */ sizeof (struct scm_jit_function_data),
-    /* end = */ sizeof (struct goto_continuation_code)
+    /* end = */ sizeof (struct scm_jit_function_data) + 12
   },
   {
     SCM_PACK_OP_24 (instrument_entry, 0),