diff --git a/tests/signal-time-dependent.cpp b/tests/signal-time-dependent.cpp
index e186960aa118fda7e644c04f65c463b18829a3be..2f9efd7c593fb112421a998d7294c99a3110ac9f 100644
--- a/tests/signal-time-dependent.cpp
+++ b/tests/signal-time-dependent.cpp
@@ -121,6 +121,9 @@ BOOST_AUTO_TEST_CASE (signaltimedependent)
   sig5.setDependencyType (dynamicgraph::TimeDependency<int>::ALWAYS_READY);
   sig6.setDependencyType (dynamicgraph::TimeDependency<int>::BOOL_DEPENDENT);
 
+  sig5.setPeriodTime(3);
+  assert(sig5.getPeriodTime() == 3);
+
   sig6.setReady();
 
   {