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-rw-r--r--src/expr.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/expr.rs b/src/expr.rs
index fa941e6146a..60e0e007b1d 100644
--- a/src/expr.rs
+++ b/src/expr.rs
@@ -1933,7 +1933,7 @@ fn rewrite_unary_op(
     shape: Shape,
 ) -> Option<String> {
     // For some reason, an UnOp is not spanned like BinOp!
-    rewrite_unary_prefix(context, ast::UnOp::to_string(op), expr, shape)
+    rewrite_unary_prefix(context, op.as_str(), expr, shape)
 }
 
 pub(crate) enum RhsAssignKind<'ast> {