diff --git a/.sqlfluff b/.sqlfluff
index ee56ebb..3f42386 100644
--- a/.sqlfluff
+++ b/.sqlfluff
@@ -2,6 +2,9 @@
 dialect = postgres
 max_line_length = 140
 
+[sqlfluff:rules:references.special_chars]
+ignore_words = uuid-ossp
+
 [sqlfluff:rules]
 # old configuration, to be compatible with Debian stable
 max_line_length = 140
@@ -11,4 +14,5 @@ indent_unit = tab
 indent_unit = tab
 
 [sqlfluff:rules:L057]
+# old configuration, to be compatible with Debian stable
 ignore_words = uuid-ossp
diff --git a/internal/database/database.sql b/internal/database/database.sql
index 7330adb..9fadf32 100644
--- a/internal/database/database.sql
+++ b/internal/database/database.sql
@@ -17,7 +17,7 @@ CREATE TABLE IF NOT EXISTS uplink_gtp4 (
 	uplink_teid INTEGER,
 	srgw_ip INET,
 	gnb_ip INET,
-	action_uuid UUID REFERENCES rule(uuid) ON DELETE CASCADE,
+	action_uuid UUID REFERENCES rule (uuid) ON DELETE CASCADE,
 	PRIMARY KEY (uplink_teid, srgw_ip, gnb_ip)
 );