diff --git a/gobject/tests/closure.c b/gobject/tests/closure.c
index 5f1a22cdb..8c32ee4e0 100644
--- a/gobject/tests/closure.c
+++ b/gobject/tests/closure.c
@@ -165,7 +165,7 @@ test_closure_fd (void)
 static gboolean
 send_usr1 (gpointer user_data)
 {
-  kill (0, SIGUSR1);
+  kill (getpid (), SIGUSR1);
   return FALSE;
 }