diff --git a/src/back/msl/writer.rs b/src/back/msl/writer.rs
index 8294626a80..1d63a07535 100644
--- a/src/back/msl/writer.rs
+++ b/src/back/msl/writer.rs
@@ -647,6 +647,8 @@ impl<W: Write> Writer<W> {
     }
 
     /// Finishes writing and returns the output.
+    // See https://github.com/rust-lang/rust-clippy/issues/4979.
+    #[allow(clippy::missing_const_for_fn)]
     pub fn finish(self) -> W {
         self.out
     }
diff --git a/src/back/wgsl/writer.rs b/src/back/wgsl/writer.rs
index 487ea40d8a..77ab496cba 100644
--- a/src/back/wgsl/writer.rs
+++ b/src/back/wgsl/writer.rs
@@ -1859,6 +1859,8 @@ impl<W: Write> Writer<W> {
         Ok(())
     }
 
+    // See https://github.com/rust-lang/rust-clippy/issues/4979.
+    #[allow(clippy::missing_const_for_fn)]
     pub fn finish(self) -> W {
         self.out
     }