diff --git a/image/src/sixel.rs b/image/src/sixel.rs
index 1afa7ed2d..d4aeabf55 100644
--- a/image/src/sixel.rs
+++ b/image/src/sixel.rs
@@ -58,7 +58,7 @@ impl SixelBackend {
                 read(STDIN_FILENO, &mut byte as *mut _ as *mut c_void, 1);
             }
             buf.push(byte);
-            if buf.starts_with(&[0x1B, b'[', b'?']) && buf.ends_with(&[b'c']) {
+            if buf.starts_with(&[0x1B, b'[', b'?']) && buf.ends_with(b"c") {
                 for attribute in buf[3..(buf.len() - 1)].split(|x| *x == b';') {
                     if attribute == [b'4'] {
                         unsafe {