diff --git a/tools/list-sessions.c b/tools/list-sessions.c
index 0a026c8..9a89e70 100644
--- a/tools/list-sessions.c
+++ b/tools/list-sessions.c
@@ -149,7 +149,12 @@ get_real_name (uid_t uid)
         pwent = getpwuid (uid);
 
         if (pwent != NULL) {
-                realname = g_strdup (pwent->pw_gecos);
+                char *comma = strchr (pwent->pw_gecos, ',');
+                if (comma != NULL) {
+                        realname = g_strdup (pwent->pw_gecos, comma - pwent->pw_gecos);
+                } else {
+                        realname = g_strdup (pwent->pw_gecos);
+                }
         }
 
         return realname;