diff --git a/panels/system/remote-desktop/cc-desktop-sharing-page.c b/panels/system/remote-desktop/cc-desktop-sharing-page.c
index 13caf3c5fae6a23b229a44dfbf381b0045574faa..abacddbfd5a69cacb3adfc607511734c79ddd229 100644
--- a/panels/system/remote-desktop/cc-desktop-sharing-page.c
+++ b/panels/system/remote-desktop/cc-desktop-sharing-page.c
@@ -545,7 +545,7 @@ format_port_for_row (GBinding     *binding,
   int port = g_value_get_int (from_value);
 
   if (port <= 0)
-    g_value_set_string (to_value, " ");
+    g_value_set_string (to_value, "—");
   else
     g_value_take_string (to_value, g_strdup_printf ("%u", port));
 
diff --git a/panels/system/remote-desktop/cc-remote-login-page.c b/panels/system/remote-desktop/cc-remote-login-page.c
index 06de5353d3ae84c7079170d00296ebb8307cdb4f..1852be863cefad5bf48698dcbef9e9e08178fc46 100644
--- a/panels/system/remote-desktop/cc-remote-login-page.c
+++ b/panels/system/remote-desktop/cc-remote-login-page.c
@@ -411,7 +411,7 @@ format_port_for_row (GBinding     *binding,
   int port = g_value_get_int (from_value);
 
   if (port <= 0)
-    g_value_set_string (to_value, " ");
+    g_value_set_string (to_value, "—");
   else
     g_value_take_string (to_value, g_strdup_printf ("%u", port));