diff --git a/pageserver/src/aux_file.rs b/pageserver/src/aux_file.rs
index 2752b15378..88c1341e6b 100644
--- a/pageserver/src/aux_file.rs
+++ b/pageserver/src/aux_file.rs
@@ -65,7 +65,7 @@ pub fn encode_aux_file_key(path: &str) -> Key {
 const AUX_FILE_ENCODING_VERSION: u8 = 0x01;
 
 pub fn decode_file_value(val: &[u8]) -> anyhow::Result<Vec<(&str, &[u8])>> {
-    let mut ptr = &val[..];
+    let mut ptr = val;
     assert_eq!(
         ptr.get_u8(),
         AUX_FILE_ENCODING_VERSION,