diff --git a/src/dbgi/dbgi.c b/src/dbgi/dbgi.c
index 53c51b91..db2c06d0 100644
--- a/src/dbgi/dbgi.c
+++ b/src/dbgi/dbgi.c
@@ -1383,6 +1383,7 @@ di_search_thread__entry_point(void *p)
         {
           items.v[idx].match_ranges = fuzzy_match_range_list_copy(arena, &items.v[idx].match_ranges);
         }
+        idx += chunk->count;
       }
     }