diff --git a/sflphone-gtk/configure.ac b/sflphone-gtk/configure.ac
index f1baaa4301bcbfd0cb7d9254761e8a1d7c8ead22..3a95fb913f9e0b1ecfe3216eaedee0ce60348f39 100644
--- a/sflphone-gtk/configure.ac
+++ b/sflphone-gtk/configure.ac
@@ -27,6 +27,7 @@ PKG_CHECK_MODULES(DEPS, \
     libnotify >= 0.4 \
     gtk+-2.0 >= 2.2     \
     glib-2.0 >= 2.2     \
+    libsexy >= 0.1    \
 )