diff --git a/src/nodes/from_str.rs b/src/nodes/from_str.rs
index ba94dfa..f07f99f 100644
--- a/src/nodes/from_str.rs
+++ b/src/nodes/from_str.rs
@@ -22,7 +22,7 @@ impl TryFrom<char> for Operator {
     fn try_from(value: char) -> Result<Self, Self::Error> {
         match value {
             '+' => Ok(Self::Plus),
-            '-' => Ok(Self::Minus),
+            '-' | '−' => Ok(Self::Minus),
             '*' | '×' => Ok(Self::Mult),
             '/' | '÷' => Ok(Self::Div),
             '^' => Ok(Self::Exp),