diff --git a/gobject/gsignal.c b/gobject/gsignal.c
index 8e10f40d2..a106bbeec 100644
--- a/gobject/gsignal.c
+++ b/gobject/gsignal.c
@@ -3560,7 +3560,8 @@ g_signal_emit (gpointer instance,
  * @detailed_signal: a string of the form "signal-name::detail".
  * @...: parameters to be passed to the signal, followed by a
  *  location for the return value. If the return type of the signal
- *  is #G_TYPE_NONE, the return value location can be omitted.
+ *  is %G_TYPE_NONE, the return value location can be omitted. The
+ *  number of parameters to pass to this function is defined when creating the signal.
  *
  * Emits a signal.
  *