diff --git a/rust/lance-file/src/reader.rs b/rust/lance-file/src/reader.rs
index 933dad4f177..ff2fc6bd7fb 100644
--- a/rust/lance-file/src/reader.rs
+++ b/rust/lance-file/src/reader.rs
@@ -532,7 +532,7 @@ fn read_null_array(
                 0
             } else {
                 let idx_max = *indices.values().iter().max().unwrap() as u64;
-                if idx_max >= page_info.length.try_into().unwrap() {
+                if idx_max >= page_info.length as u64 {
                     return Err(Error::io(
                         format!(
                             "NullArray Reader: request([{}]) out of range: [0..{}]",