diff --git a/crates/deno_task_shell/src/parser.rs b/crates/deno_task_shell/src/parser.rs
index 18669f6..cff0f5f 100644
--- a/crates/deno_task_shell/src/parser.rs
+++ b/crates/deno_task_shell/src/parser.rs
@@ -427,7 +427,7 @@ pub enum ArithmeticPart {
     right: Box<ArithmeticPart>,
   },
   #[error("Invalid unary arithmetic expression")]
-  UnaryAritheticExpr {
+  UnaryArithmeticExpr {
     operator: UnaryArithmeticOp,
     operand: Box<ArithmeticPart>,
   },
@@ -1463,14 +1463,14 @@ fn unary_pre_arithmetic_expr(pair: Pair<Rule>) -> Result<ArithmeticPart> {
   match first.as_rule() {
     Rule::pre_arithmetic_op => {
       let op = parse_pre_arithmetic_op(first)?;
-      Ok(ArithmeticPart::UnaryAritheticExpr {
+      Ok(ArithmeticPart::UnaryArithmeticExpr {
         operator: UnaryArithmeticOp::Pre(op),
         operand: Box::new(operand),
       })
     }
     Rule::post_arithmetic_op => {
       let op = parse_pre_arithmetic_op(first)?;
-      Ok(ArithmeticPart::UnaryAritheticExpr {
+      Ok(ArithmeticPart::UnaryArithmeticExpr {
         operator: UnaryArithmeticOp::Pre(op),
         operand: Box::new(operand),
       })
@@ -1505,7 +1505,7 @@ fn unary_post_arithmetic_expr(pair: Pair<Rule>) -> Result<ArithmeticPart> {
     )),
   }?;
   let op = parse_post_arithmetic_op(second)?;
-  Ok(ArithmeticPart::UnaryAritheticExpr {
+  Ok(ArithmeticPart::UnaryArithmeticExpr {
     operator: UnaryArithmeticOp::Post(op),
     operand: Box::new(operand),
   })
diff --git a/crates/deno_task_shell/src/shell/execute.rs b/crates/deno_task_shell/src/shell/execute.rs
index b2680c7..4c8076f 100644
--- a/crates/deno_task_shell/src/shell/execute.rs
+++ b/crates/deno_task_shell/src/shell/execute.rs
@@ -618,7 +618,7 @@ async fn evaluate_arithmetic_part(
       let rhs = Box::pin(evaluate_arithmetic_part(right, state)).await?;
       apply_conditional_binary_op(lhs, operator, rhs)
     }
-    ArithmeticPart::UnaryAritheticExpr { operator, operand } => {
+    ArithmeticPart::UnaryArithmeticExpr { operator, operand } => {
       let val = Box::pin(evaluate_arithmetic_part(operand, state)).await?;
       apply_unary_op(state, *operator, val, operand)
     }