diff --git a/src/tests/test-client.c b/src/tests/test-client.c
index 6ee7b6c4a..12c3e9c38 100644
--- a/src/tests/test-client.c
+++ b/src/tests/test-client.c
@@ -977,7 +977,8 @@ const GOptionEntry options[] = {
 };
 
 int
-main(int argc, char **argv)
+main(int    argc,
+     char **argv)
 {
   GOptionContext *context = g_option_context_new (NULL);
   GdkScreen *screen;