diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index eee69adde3ce..b23fc94aeb85 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -1288,8 +1288,8 @@ BIF_RETTYPE code_get_debug_info_1(BIF_ALIST_1)
     hp = HAlloc(BIF_P, alloc_size);
     hend = hp + alloc_size;
 
-    for (i = debug->item_count; i > 0; i--) {
-        BeamDebugItem* items = &debug->items[i-1];
+    for (i = debug->item_count-1; i > 0; i--) {
+        BeamDebugItem* items = &debug->items[i];
         Sint32 frame_size = items->frame_size;
         Uint num_vars = items->num_vars;
         Eterm *tp = items->first + 2 * num_vars - 2;