diff --git a/src/graph/edge.cc b/src/graph/edge.cc
index 74c80bfa34da928173c52d4c7733fc87beaf6c45..ad542f1767c831a81b60eabd9bdac5a29f40692c 100644
--- a/src/graph/edge.cc
+++ b/src/graph/edge.cc
@@ -18,7 +18,7 @@
 
 #include <hpp/core/straight-path.hh>
 #include <hpp/core/path-vector.hh>
-#include <hpp/core/differentiable-function.hh>
+#include <hpp/constraints/differentiable-function.hh>
 
 #include <hpp/util/pointer.hh>