diff --git a/sflphone-gtk/src/sliders.c b/sflphone-gtk/src/sliders.c
index 67a2c0279d4b5645573920bd2d8363e33b726492..bd5ab25b8bf2ef9becffcd24f5a8bc5c63eeef49 100644
--- a/sflphone-gtk/src/sliders.c
+++ b/sflphone-gtk/src/sliders.c
@@ -19,6 +19,7 @@
  
 #include <sliders.h>
 #include <dbus.h>
+#include <actions.h>
 #include <string.h>
 
 gdouble     value[2];
@@ -160,6 +161,11 @@ create_slider(const gchar * device)
   }
   
   ret = gtk_hbox_new ( FALSE /*homogeneous*/, 5 /*spacing*/);
+ 
+  if( strcmp( device , "speaker") == 0 ) 
+    gtk_widget_set_tooltip_text( GTK_WIDGET( ret ), _("Speakers volume"));
+  else
+    gtk_widget_set_tooltip_text( GTK_WIDGET( ret ), _("Mic volume"));
   
   button[dev] = gtk_toggle_button_new();
   gtk_box_pack_start (GTK_BOX (ret), button[dev], FALSE /*expand*/, TRUE /*fill*/, 0 /*padding*/);