diff --git a/files/grest/rpc/db-scripts/basics.sql b/files/grest/rpc/db-scripts/basics.sql
index 8cd57625..8c3ebb9e 100644
--- a/files/grest/rpc/db-scripts/basics.sql
+++ b/files/grest/rpc/db-scripts/basics.sql
@@ -116,9 +116,17 @@ END
 $do$;
 
 -- DROP EXISTING GREST ADDED TRIGGERS ON PUBLIC SCHEMA
-FOR r IN (SELECT trigger_name, event_object_table FROM information_schema.triggers WHERE trigger_schema = 'public' AND action_statement LIKE '%grest.%') LOOP
-  EXECUTE 'DROP TRIGGER IF EXISTS ' || quote_ident(r.trigger_name) || ' ON ' || quote_ident(r.event_object_table);
-END LOOP;
+DO
+$$
+DECLARE
+  r record;
+BEGIN
+  FOR r IN (SELECT trigger_name, event_object_table FROM information_schema.triggers WHERE trigger_schema = 'public' AND action_statement LIKE '%grest.%')
+  LOOP
+    EXECUTE 'DROP TRIGGER IF EXISTS ' || quote_ident(r.trigger_name) || ' ON ' || quote_ident(r.event_object_table);
+  END LOOP;
+END
+$$;
 
 -- HELPER FUNCTIONS --
 CREATE FUNCTION grest.get_query_pids_partial_match(_query text)