diff --git a/src/point-cloud.cc b/src/point-cloud.cc
index e260f8b..3543d37 100644
--- a/src/point-cloud.cc
+++ b/src/point-cloud.cc
@@ -418,7 +418,7 @@ namespace hpp {
 
 #else
     bool PointCloud::displayOctree
-    (const OcTreePtr_t& /*octree*/, const std::string& /*octreeFrame*/)
+    (const std::string& /*octreeFrame*/)
     {
       return true;
     }