diff --git a/gio/gsocketcontrolmessage.c b/gio/gsocketcontrolmessage.c
index d79bd7428..654e58f35 100644
--- a/gio/gsocketcontrolmessage.c
+++ b/gio/gsocketcontrolmessage.c
@@ -29,7 +29,7 @@
  * These messages are sent with [method@Gio.Socket.send_message] and received
  * with [method@Gio.Socket.receive_message].
  *
- * To extend the set of control message that can be sent, subclass this
+ * To extend the set of control messages that can be sent, subclass this
  * class and override the `get_size`, `get_level`, `get_type` and `serialize`
  * methods.
  *