1 files changed, 2 insertions, 2 deletions
diff --git a/src/bindings.rs b/src/bindings.rs
index 5db63c9..b596c84 100644
--- a/src/bindings.rs
+++ b/src/bindings.rs
@@ -9,7 +9,7 @@ use serde::{Deserialize, Serialize};
 use serde_aux::prelude::*;
 
 use std::collections::HashMap;
-use std::fmt::Debug;
+use std::fmt::{Debug, Write};
 use std::ops::Deref;
 use std::path::Path;
 use std::str::FromStr;
@@ -853,7 +853,7 @@ fn regex_from_simple_pattern(
             }
         };
 
-        r.push_str(&format!(r"(?P<{}>{})", name, kind.regex_str()));
+        write!(r, r"(?P<{}>{})", name, kind.regex_str()).unwrap();
         end = m.end();
     }
     let after = &pattern[end..];