diff --git a/src/symboltable.rs b/src/symboltable.rs
index d08aa4f..0ad3633 100644
--- a/src/symboltable.rs
+++ b/src/symboltable.rs
@@ -741,7 +741,6 @@ impl SymbolTableBuilder {
         Ok(())
     }
 
-    #[allow(clippy::single_match)]
     fn register_name(&mut self, name: &str, role: SymbolUsage) -> SymbolTableResult {
         let scope_depth = self.tables.len();
         let table = self.tables.last_mut().unwrap();
@@ -777,13 +776,11 @@ impl SymbolTableBuilder {
 
         // Some more checks:
         match role {
-            SymbolUsage::Nonlocal => {
-                if scope_depth < 2 {
-                    return Err(SymbolTableError {
-                        error: format!("cannot define nonlocal '{}' at top level.", name),
-                        location,
-                    });
-                }
+            SymbolUsage::Nonlocal if scope_depth < 2 => {
+                return Err(SymbolTableError {
+                    error: format!("cannot define nonlocal '{}' at top level.", name),
+                    location,
+                })
             }
             _ => {
                 // Ok!