diff --git a/crates/oxc_codegen/src/sourcemap_builder.rs b/crates/oxc_codegen/src/sourcemap_builder.rs
index 043536f30..986f26574 100644
--- a/crates/oxc_codegen/src/sourcemap_builder.rs
+++ b/crates/oxc_codegen/src/sourcemap_builder.rs
@@ -173,7 +173,7 @@ impl SourcemapBuilder {
             });
 
             let remaining = &content.as_bytes()[line_byte_offset..];
-            for (mut byte_offset_from_line_start, b) in remaining.iter().copied().enumerate() {
+            for (mut byte_offset_from_line_start, b) in remaining.iter().enumerate() {
                 match b {
                     b'\n' => {
                         byte_offset_from_line_start += 1;