src/lemon/bits/base_extender.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lemon/bits/base_extender.h b/src/lemon/bits/base_extender.h
index 84bb242..b812247 100644
--- a/src/lemon/bits/base_extender.h
+++ b/src/lemon/bits/base_extender.h
@@ -359,10 +359,10 @@ namespace lemon {
 		}
 		
 		Node source(const UEdge& edge) const {
-			return aNode(edge);
+			return this->aNode(edge);
 		}
 		Node target(const UEdge& edge) const {
-			return bNode(edge);
+			return this->bNode(edge);
 		}
 		
 		void firstInc(UEdge& edge, bool& dir, const Node& node) const {