diff --git a/doc/dundee-api.txt b/doc/dundee-api.txt
index 9f4cfe6e..11e988d1 100644
--- a/doc/dundee-api.txt
+++ b/doc/dundee-api.txt
@@ -41,6 +41,17 @@ Methods		dict GetProperties()
 			Returns properties for the device object. See
 			the properties section for available properties.
 
+		void SetProperty(string property, variant value)
+
+			Changes the value of the specified property. Only
+			properties that are listed as readwrite are
+			changeable. On success a PropertyChanged signal
+			will be emitted.
+
+			Possible Errors: [service].Error.Timedout
+					 [service].Error.InvalidArguments
+					 [service].Error.Failed
+
 Signals		PropertyChanged(string name, variant value)
 
 			This signal indicates a changed value of the given