diff --git a/doc/wsc-api.txt b/doc/wsc-api.txt
index 6d9fd7b8..755197f6 100644
--- a/doc/wsc-api.txt
+++ b/doc/wsc-api.txt
@@ -5,7 +5,7 @@ Service		net.connman.iwd
 Interface	net.connman.iwd.WiFiSimpleConfiguration [Experimental]
 Object path	/{phy0,phy1,...}/{1,2,...}
 
-Methods		void PushButton
+Methods		void PushButton()
 
 			Start WSC (formerly known as WPS, Wi-Fi Protected
 			Setup) configuration in PushButton mode.