diff --git a/python/core/qgsdatasourceuri.sip b/python/core/qgsdatasourceuri.sip
index c2dbfee8fa1..7a4b9d744f0 100644
--- a/python/core/qgsdatasourceuri.sip
+++ b/python/core/qgsdatasourceuri.sip
@@ -133,6 +133,7 @@ class QgsDataSourceURI
     QGis::WkbType wkbType() const;
     void setWkbType( QGis::WkbType type );
 
+    // added in 1.9
     QString srid() const;
     void setSrid( QString srid );
 };
diff --git a/src/core/qgsdatasourceuri.h b/src/core/qgsdatasourceuri.h
index 4e8a7486237..e18ed1c39c3 100644
--- a/src/core/qgsdatasourceuri.h
+++ b/src/core/qgsdatasourceuri.h
@@ -166,6 +166,7 @@ class CORE_EXPORT QgsDataSourceURI
     QGis::WkbType wkbType() const;
     void setWkbType( QGis::WkbType type );
 
+    // added in 1.9
     QString srid() const;
     void setSrid( QString srid );