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-rw-r--r--src/debug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/debug.c b/src/debug.c
index 2f9320ac9..c03c91cf5 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -66,7 +66,7 @@ mrb_debug_get_filename(mrb_state *mrb, const mrb_irep *irep, uint32_t pc)
MRB_API int32_t
mrb_debug_get_line(mrb_state *mrb, const mrb_irep *irep, uint32_t pc)
{
- if (irep && pc >= 0 && pc < irep->ilen) {
+ if (irep && pc < irep->ilen) {
mrb_irep_debug_info_file* f = NULL;
if (!irep->debug_info) {
return -1;