diff --git a/testsuites/psxtests/psxstrsignal01/init.c b/testsuites/psxtests/psxstrsignal01/init.c
index 82b517fc66..9614fb99aa 100644
--- a/testsuites/psxtests/psxstrsignal01/init.c
+++ b/testsuites/psxtests/psxstrsignal01/init.c
@@ -57,6 +57,10 @@ Signals_t Signals[] = {
   { NULL,       -1 },
 };
 
+void do_test(void);
+void do_test_rt(void);
+void *POSIX_Init(void *unused);
+
 void do_test(void)
 {
   int i;