diff --git a/professor_por_escola.json b/professor_por_escola.json
index 1a04b5a628a4ae7842248bd0ab0ef09eef973f4d..f14a8cdbe4d0f444630fc4f1fde5165bb764d1e4 100644
--- a/professor_por_escola.json
+++ b/professor_por_escola.json
@@ -17,6 +17,11 @@
             "keys": ["regiao_id"],
             "reference_columns": ["id"],
             "reference_table": "regiao"
+        },
+        {
+            "keys": ["id"],
+            "reference_columns": ["id"],
+            "reference_table": "escola"
         }
     ]
 }