diff --git a/derive/examples/calc.rs b/derive/examples/calc.rs
index 70716253..61df2527 100644
--- a/derive/examples/calc.rs
+++ b/derive/examples/calc.rs
@@ -72,8 +72,8 @@ fn main() {
         .op(Op::infix(Rule::add, Left) | Op::infix(Rule::sub, Left))
         .op(Op::infix(Rule::mul, Left) | Op::infix(Rule::div, Left))
         .op(Op::infix(Rule::pow, Right))
-        .op(Op::postfix(Rule::fac))
-        .op(Op::prefix(Rule::neg));
+        .op(Op::prefix(Rule::neg))
+        .op(Op::postfix(Rule::fac));
 
     let stdin = stdin();
     let mut stdout = stdout();
diff --git a/pest/src/pratt_parser.rs b/pest/src/pratt_parser.rs
index 76ffdf75..f042f825 100644
--- a/pest/src/pratt_parser.rs
+++ b/pest/src/pratt_parser.rs
@@ -142,8 +142,8 @@ impl<R: RuleType> BitOr for Op<R> {
 ///         .op(Op::infix(Rule::add, Assoc::Left) | Op::infix(Rule::sub, Assoc::Left))
 ///         .op(Op::infix(Rule::mul, Assoc::Left) | Op::infix(Rule::div, Assoc::Left))
 ///         .op(Op::infix(Rule::pow, Assoc::Right))
-///         .op(Op::postfix(Rule::fac))
-///         .op(Op::prefix(Rule::neg));
+///         .op(Op::prefix(Rule::neg))
+///         .op(Op::postfix(Rule::fac));
 /// ```
 ///
 /// To parse an expression, call the [`map_primary`], [`map_prefix`], [`map_postfix`],