diff --git a/python/core/qgsdatasourceuri.sip b/python/core/qgsdatasourceuri.sip
index e3147395cb2..89bb09d661c 100644
--- a/python/core/qgsdatasourceuri.sip
+++ b/python/core/qgsdatasourceuri.sip
@@ -35,7 +35,7 @@ public:
                      const QString& aDatabase,
                      const QString& aUsername,
                      const QString& aPassword,
-                     SSLmode sslmode );
+                     SSLmode sslmode = SSLprefer );
   
   //! Set all data source related members at once
   void setDataSource(const QString& aSchema,
diff --git a/src/core/qgsdatasourceuri.h b/src/core/qgsdatasourceuri.h
index e7bf7b8ce79..a5aac36eddf 100644
--- a/src/core/qgsdatasourceuri.h
+++ b/src/core/qgsdatasourceuri.h
@@ -53,7 +53,7 @@ class CORE_EXPORT QgsDataSourceURI
                         const QString& aDatabase,
                         const QString& aUsername,
                         const QString& aPassword,
-                        SSLmode sslmode );
+                        SSLmode sslmode = SSLprefer );
 
     //! Set all data source related members at once
     void setDataSource( const QString& aSchema,