diff --git a/askama_derive/src/lib.rs b/askama_derive/src/lib.rs
index 8eb5c5dc..95bf9e4d 100644
--- a/askama_derive/src/lib.rs
+++ b/askama_derive/src/lib.rs
@@ -261,7 +261,7 @@ pub fn derive_template(input: TokenStream, import_askama: fn() -> TokenStream) -
                     Error: {err}\n\n\
                     Generated source:\n\
                     ------------------------------------------------\n\
-                    {src:?}\n\
+                    {src}\n\
                     ------------------------------------------------\n\n"
                 ),
             }