diff --git a/user_guide_src/source/libraries/sessions.rst b/user_guide_src/source/libraries/sessions.rst
index 2324d91..1fb9592 100644
--- a/user_guide_src/source/libraries/sessions.rst
+++ b/user_guide_src/source/libraries/sessions.rst
@@ -569,7 +569,7 @@
 		"ip_address" varchar(45) NOT NULL,
 		"timestamp" bigint DEFAULT 0 NOT NULL,
 		"data" text DEFAULT '' NOT NULL,
-		PRIMARY KEY ("session_id")
+		PRIMARY KEY ("id")
 	);
 
 	CREATE INDEX "ci_sessions_timestamp" ON "ci_sessions" ("timestamp");