diff --git a/src/huff0/mod.rs b/src/huff0/mod.rs
index 007f73b..1a65241 100644
--- a/src/huff0/mod.rs
+++ b/src/huff0/mod.rs
@@ -64,7 +64,7 @@ fn roundtrip() {
         round_trip(&data);
     }
 
-    #[cfg(feature="std")]
+    #[cfg(feature = "std")]
     if std::fs::exists("fuzz/artifacts/huff0").unwrap_or(false) {
         for file in std::fs::read_dir("fuzz/artifacts/huff0").unwrap() {
             if file.as_ref().unwrap().file_type().unwrap().is_file() {