diff --git a/ast/src/constant.rs b/ast/src/constant.rs
index 6099272efd..7b40fb1f39 100644
--- a/ast/src/constant.rs
+++ b/ast/src/constant.rs
@@ -41,7 +41,10 @@ impl std::fmt::Display for Constant {
         match self {
             Constant::None => f.pad("None"),
             Constant::Bool(b) => f.pad(if *b { "True" } else { "False" }),
-            Constant::Str(s) => rustpython_common::str::repr(s).fmt(f),
+            Constant::Str(s) => {
+                use rustpython_common::escape::Escape;
+                rustpython_common::escape::UnicodeEscape::new_repr(s.as_str()).write_quoted(f)
+            }
             Constant::Bytes(b) => {
                 f.pad(&rustpython_common::bytes::repr(b).map_err(|_err| std::fmt::Error)?)
             }
diff --git a/ast/src/unparse.rs b/ast/src/unparse.rs
index 081c2a9241..1af7bf2e98 100644
--- a/ast/src/unparse.rs
+++ b/ast/src/unparse.rs
@@ -509,9 +509,10 @@ impl<'a> Unparser<'a> {
         if is_spec {
             self.unparse_fstring_body(values, is_spec)
         } else {
+            use rustpython_common::escape::Escape;
             self.p("f")?;
             let body = to_string_fmt(|f| Unparser::new(f).unparse_fstring_body(values, is_spec));
-            fmt::Display::fmt(&rustpython_common::str::repr(&body), &mut self.f)
+            rustpython_common::escape::UnicodeEscape::new_repr(&body).write_quoted(&mut self.f)
         }
     }
 }