diff --git a/crates/lox-library/src/lib.rs b/crates/lox-library/src/lib.rs
index ffa233b..ea99c32 100644
--- a/crates/lox-library/src/lib.rs
+++ b/crates/lox-library/src/lib.rs
@@ -552,16 +552,12 @@ impl BridgeAuth {
         //   - third dissolve a spare bucket to create more available bridges
         let Some(replacement) = available_bridge.or_else(|| {
             self.bridge_table.unallocated_bridges.pop().or_else(|| {
-                // First get the bucketnums for the replacement bridge in case it is a spare
-                let mut bucketnums: Vec<u32> = Vec::new();
-                for (bucketnum, _) in positions.iter() {
-                    bucketnums.push(*bucketnum);
-                }
                 let Some(spare) = self
                     .bridge_table
                     .spares
                     .iter()
-                    .find(|x| !bucketnums.contains(x))
+                    // in case bridge is a spare, avoid replacing it with itself
+                    .find(|x| !positions.iter().any(|(bucketnum, _)| &bucketnum == x))
                     .cloned()
                 else {
                     return None;