diff --git a/lib/drmtest.c b/lib/drmtest.c
index 9d4c5dac..abd45b61 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -981,7 +981,6 @@ static void fork_helper_exit_handler(int sig)
 bool __igt_fork_helper(struct igt_helper_process *proc)
 {
 	pid_t pid;
-	sighandler_t oldsig;
 	int id;
 
 	assert(!proc->running);