diff --git a/userspace/libraries/LibC/termios.cpp b/userspace/libraries/LibC/termios.cpp
index b81c9ecb..28974701 100644
--- a/userspace/libraries/LibC/termios.cpp
+++ b/userspace/libraries/LibC/termios.cpp
@@ -71,7 +71,7 @@ int tcflow(int, int);
 int tcflush(int fd, int queue_selector)
 {
 	dwarnln("FIXME: tcflush({}, {})", fd, queue_selector);
-	ASSERT_NOT_REACHED();
+	return 0;
 }
 
 int tcgetattr(int fildes, struct termios* termios)