1 files changed, 1 insertions, 1 deletions
diff --git a/iseq.c b/iseq.c
index f17a2d49b6..4a2c9a33ee 100644
--- a/iseq.c
+++ b/iseq.c
@@ -2411,7 +2411,7 @@ rb_iseq_disasm_recursive(const rb_iseq_t *iseq, VALUE indent)
     rb_str_cat2(str, "== disasm: ");
 
     rb_str_append(str, iseq_inspect(iseq));
-    rb_str_catf(str, " (catch: %s)", body->catch_except_p ? "TRUE" : "FALSE");
+    rb_str_catf(str, " (catch: %s)", body->catch_except_p ? "true" : "false");
     if ((l = RSTRING_LEN(str) - indent_len) < header_minlen) {
         rb_str_modify_expand(str, header_minlen - l);
         memset(RSTRING_END(str), '=', header_minlen - l);