diff --git a/tests/nouveau/threaded.c b/tests/nouveau/threaded.c
index 3669bcd3..e1c27c01 100644
--- a/tests/nouveau/threaded.c
+++ b/tests/nouveau/threaded.c
@@ -36,7 +36,11 @@ static int failed;
 
 static int import_fd;
 
+#ifdef __GLIBC__
 int ioctl(int fd, unsigned long request, ...)
+#else
+int ioctl(int fd, int request, ...)
+#endif
 {
 	va_list va;
 	int ret;