diff --git a/include/dynamic-graph/python/signal.hh b/include/dynamic-graph/python/signal.hh
index ea115e655df193dbee1f9c8c57cf8230ea005685..e439a32adf488a638392bfe07cb093e9f34ef5be 100644
--- a/include/dynamic-graph/python/signal.hh
+++ b/include/dynamic-graph/python/signal.hh
@@ -19,15 +19,11 @@ auto exposeSignal(const std::string& name) {
   namespace bp = boost::python;
 
   typedef Signal<T, Time> S_t;
-  bp::class_<S_t, bp::bases<SignalBase<Time> >, boost::noncopyable> obj(
-      name.c_str(), bp::init<std::string>());
-  obj.add_property(
-      "value",
-      bp::make_function(&S_t::accessCopy,
-                        bp::return_value_policy<bp::copy_const_reference>()),
-      &S_t::setConstant,  // TODO check the setter
-      "the signal value.\n"
-      "warning: for Eigen objects, sig.value[0] = 1. may not work).");
+  bp::class_<S_t, bp::bases<SignalBase<Time> >, boost::noncopyable> obj(name.c_str(), bp::init<std::string>());
+  obj.add_property("value", bp::make_function(&S_t::accessCopy, bp::return_value_policy<bp::copy_const_reference>()),
+                   &S_t::setConstant,  // TODO check the setter
+                   "the signal value.\n"
+                   "warning: for Eigen objects, sig.value[0] = 1. may not work).");
   return obj;
 }
 
@@ -36,8 +32,7 @@ auto exposeSignalWrapper(const std::string& name) {
   namespace bp = boost::python;
 
   typedef SignalWrapper<T, Time> S_t;
-  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(
-      name.c_str(), bp::no_init);
+  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(name.c_str(), bp::no_init);
   return obj;
 }
 
@@ -46,8 +41,7 @@ auto exposeSignalPtr(const std::string& name) {
   namespace bp = boost::python;
 
   typedef SignalPtr<T, Time> S_t;
-  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(
-      name.c_str(), bp::no_init);
+  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(name.c_str(), bp::no_init);
   return obj;
 }
 
@@ -56,8 +50,7 @@ auto exposeSignalTimeDependent(const std::string& name) {
   namespace bp = boost::python;
 
   typedef SignalTimeDependent<T, Time> S_t;
-  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(
-      name.c_str(), bp::no_init);
+  bp::class_<S_t, bp::bases<Signal<T, Time> >, boost::noncopyable> obj(name.c_str(), bp::no_init);
   return obj;
 }