diff --git a/pkstrings/src/lib.rs b/pkstrings/src/lib.rs
index 5a6fb1a..0ec404f 100644
--- a/pkstrings/src/lib.rs
+++ b/pkstrings/src/lib.rs
@@ -108,11 +108,7 @@ lazy_static! {
             ('@', 0x50),
         ];
 
-        let mut map = HashMap::new();
-        for (k, v) in tmp.iter() {
-            map.insert(*k, *v);
-        }
-        map
+        tmp.iter().copied().collect()
     };
     static ref HEXTOSTR: Vec<Option<char>> = {
         let tmp = [