diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
index 7c88a4eb3..1cf59cc74 100644
--- a/gio/gdbusconnection.c
+++ b/gio/gdbusconnection.c
@@ -4900,7 +4900,7 @@ schedule_method_call (GDBusConnection            *connection,
                          call_in_idle_cb,
                          invocation,
                          g_object_unref);
-  g_source_set_name (idle_source, "[gio] call_in_idle_cb");
+  g_source_set_name (idle_source, "[gio, " __FILE__ "] call_in_idle_cb");
   g_source_attach (idle_source, main_context);
   g_source_unref (idle_source);
 }
diff --git a/gio/gdbusnameowning.c b/gio/gdbusnameowning.c
index c95e43490..3e5faeb57 100644
--- a/gio/gdbusnameowning.c
+++ b/gio/gdbusnameowning.c
@@ -197,7 +197,7 @@ schedule_call_in_idle (Client *client, CallType  call_type)
                          call_in_idle_cb,
                          data,
                          (GDestroyNotify) call_handler_data_free);
-  g_source_set_name (idle_source, "[gio] call_in_idle_cb");
+  g_source_set_name (idle_source, "[gio, gdbusnameowning.c] call_in_idle_cb");
   g_source_attach (idle_source, client->main_context);
   g_source_unref (idle_source);
 }
diff --git a/gio/gdbusnamewatching.c b/gio/gdbusnamewatching.c
index 14603c5e4..3cb2b57b7 100644
--- a/gio/gdbusnamewatching.c
+++ b/gio/gdbusnamewatching.c
@@ -201,7 +201,7 @@ schedule_call_in_idle (Client *client, CallType call_type)
                          call_in_idle_cb,
                          data,
                          (GDestroyNotify) call_handler_data_free);
-  g_source_set_name (idle_source, "[gio] call_in_idle_cb");
+  g_source_set_name (idle_source, "[gio, gdbusnamewatching.c] call_in_idle_cb");
   g_source_attach (idle_source, client->main_context);
   g_source_unref (idle_source);
 }