diff --git a/src/syscalls/mod.rs b/src/syscalls/mod.rs
index 4902df8d50..9bea17b083 100644
--- a/src/syscalls/mod.rs
+++ b/src/syscalls/mod.rs
@@ -418,7 +418,7 @@ pub unsafe extern "C" fn sys_read(fd: FileDescriptor, buf: *mut u8, len: usize)
 
 #[hermit_macro::system]
 pub unsafe extern "C" fn sys_readv(fd: i32, iov: *const iovec, iovcnt: i32) -> isize {
-	if iovcnt < 0 || iovcnt > IOV_MAX {
+	if !(0..=IOV_MAX).contains(&iovcnt) {
 		return (-crate::errno::EINVAL).try_into().unwrap();
 	}
 
@@ -462,7 +462,7 @@ pub unsafe extern "C" fn sys_write(fd: FileDescriptor, buf: *const u8, len: usiz
 
 #[hermit_macro::system]
 pub unsafe extern "C" fn sys_writev(fd: FileDescriptor, iov: *const iovec, iovcnt: i32) -> isize {
-	if iovcnt < 0 || iovcnt > IOV_MAX {
+	if !(0..=IOV_MAX).contains(&iovcnt) {
 		return (-crate::errno::EINVAL).try_into().unwrap();
 	}