1 files changed, 7 insertions, 0 deletions

diff --git a/src/lisp/number.rs b/src/lisp/number.rs
index 4824e21..06c6baa 100644
--- a/src/lisp/number.rs
+++ b/src/lisp/number.rs
@@ -1,5 +1,6 @@
 use std::{
     cmp::{Eq, Ord, Ordering, PartialEq, PartialOrd},
+    convert::From,
     fmt,
     ops::{Add, Mul, Sub},
 };
@@ -113,3 +114,9 @@ impl fmt::Display for LispNumber {
         }
     }
 }
+
+impl From<i64> for LispNumber {
+    fn from(target: i64) -> Self {
+        LispNumber::Integer(target)
+    }
+}