diff --git a/crates/proof/src/lang.rs b/crates/proof/src/lang.rs
index e6000c48e..ded6f4c39 100644
--- a/crates/proof/src/lang.rs
+++ b/crates/proof/src/lang.rs
@@ -44,7 +44,8 @@ pub enum ProofLang {
 
 impl ProofLang {
     /// Every language with a spelling dictionary, in display order.
-    pub const PROOFED: [ProofLang; 8] = [ProofLang::En, ProofLang::Pl, ProofLang::Pt, ProofLang::It, ProofLang::Hr, ProofLang::Tr, ProofLang::Ru, ProofLang::Cs];
+    pub const PROOFED: [ProofLang; 8] =
+        [ProofLang::En, ProofLang::Pl, ProofLang::Pt, ProofLang::It, ProofLang::Hr, ProofLang::Tr, ProofLang::Ru, ProofLang::Cs];
 
     /// The proofing language of a BCP 47 tag (`pl-PL`, `en_GB`, `PL`…). Only the primary subtag
     /// counts. No tag (or an empty one) is English, WordCraft's default editing language.