diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 67814a284d..5a4ed051b3 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -377,6 +377,8 @@ jobs:
         working-directory: rust/suricatasc
       - run: cargo fmt --check
         working-directory: rust/sys
+      - run: cargo fmt --check
+        working-directory: rust/derive
       - name: Check if Cargo.lock.in is up to date
         run: |
           cp rust/Cargo.lock rust/Cargo.lock.in
diff --git a/rust/derive/src/applayerevent.rs b/rust/derive/src/applayerevent.rs
index 1b1a3f86ee..528e84d5b7 100644
--- a/rust/derive/src/applayerevent.rs
+++ b/rust/derive/src/applayerevent.rs
@@ -51,7 +51,9 @@ pub fn derive_app_layer_event(input: TokenStream) -> TokenStream {
     // "crate", but if we're being used by a library or plugin user we need to reference the
     // Suricata name space as "suricata". Check the CARGO_PKG_NAME environment variable to
     // determine what identifier to setup.
-    let is_suricata = std::env::var("CARGO_PKG_NAME").map(|var| var == "suricata").unwrap_or(false);
+    let is_suricata = std::env::var("CARGO_PKG_NAME")
+        .map(|var| var == "suricata")
+        .unwrap_or(false);
     let crate_id = if is_suricata {
         syn::Ident::new("crate", proc_macro2::Span::call_site())
     } else {
diff --git a/rust/derive/src/stringenum.rs b/rust/derive/src/stringenum.rs
index 6930e57a8b..55599761c9 100644
--- a/rust/derive/src/stringenum.rs
+++ b/rust/derive/src/stringenum.rs
@@ -112,7 +112,8 @@ where
                         let fnameu = fname.to_ascii_uppercase();
                         names_upper.push(fnameu);
                     }
-                    "" => { // snake_case
+                    "" => {
+                        // snake_case
                         let fname = transform_name(&v.ident.to_string());
                         let fnameu = fname.to_ascii_uppercase();
                         names.push(fname);