diff --git a/include/relation.cpp b/include/relation.cpp
index 9669d5b52..32966c587 100755
--- a/include/relation.cpp
+++ b/include/relation.cpp
@@ -1927,7 +1927,7 @@ int TRecord_array::insert_row(TRectype* r)
       TRectype & rec = row(f, FALSE);
       
       sprintf(n, "%ld", (long)_offset + f);
-      renum_key(_num, n);
+      rec.renum_key(_num, n);
     }
   }
   return nr;