diff --git a/posix/tst-_Fork.c b/posix/tst-_Fork.c
index d383f87bf7..ae1ba9bb21 100644
--- a/posix/tst-_Fork.c
+++ b/posix/tst-_Fork.c
@@ -85,7 +85,6 @@ singlethread_test (void)
 }
 
 
-static volatile sig_atomic_t sigusr1_handler_ran;
 #define SIG_PID_EXIT_CODE 20
 
 static bool atfork_prepare_var;