1 files changed, 2 insertions, 0 deletions
diff --git a/src/bytes.rs b/src/bytes.rs
index e155931..a9aefa9 100644
--- a/src/bytes.rs
+++ b/src/bytes.rs
@@ -1265,6 +1265,8 @@ impl BytesMut {
     ///
     /// Panics if `at > len`.
     pub fn split_to(&mut self, at: usize) -> BytesMut {
+        assert!(at <= self.len());
+
         BytesMut {
             inner: self.inner.split_to(at),
         }