1 files changed, 0 insertions, 3 deletions
diff --git a/iseq.c b/iseq.c
index e7482e9ba1..b1f7ba2204 100644
--- a/iseq.c
+++ b/iseq.c
@@ -664,7 +664,6 @@ ruby_iseq_disasm_insn(VALUE ret, VALUE *iseq, int pos,
 					  child);
 	rb_str_concat(str, opstr);
 
-	GC_CHECK();
 	if (types[j + 1]) {
 	    rb_str_cat2(str, ", ");
 	}
@@ -801,8 +800,6 @@ ruby_iseq_disasm(VALUE self)
 	rb_str_cat2(str, "\n");
     }
 
-    GC_CHECK();
-
     /* show each line */
     for (i = 0; i < size;) {
 	i += ruby_iseq_disasm_insn(str, iseq, i, iseqdat, child);