diff --git a/omniqueue/src/backends/redis/mod.rs b/omniqueue/src/backends/redis/mod.rs
index 62f6480..efa1ef2 100644
--- a/omniqueue/src/backends/redis/mod.rs
+++ b/omniqueue/src/backends/redis/mod.rs
@@ -205,8 +205,7 @@ fn internal_to_list_payload(
 ) -> Vec<u8> {
     let id = delayed_key_id();
     let num_receives = num_receives.to_string();
-    let mut result =
-        Vec::with_capacity(id.len() + num_receives.as_bytes().len() + payload.len() + 3);
+    let mut result = Vec::with_capacity(id.len() + num_receives.len() + payload.len() + 3);
     result.extend(id.as_bytes());
     result.push(b'#');
     result.extend(num_receives.as_bytes());
diff --git a/omniqueue/tests/it/redis_fallback.rs b/omniqueue/tests/it/redis_fallback.rs
index 627d38d..716a696 100644
--- a/omniqueue/tests/it/redis_fallback.rs
+++ b/omniqueue/tests/it/redis_fallback.rs
@@ -543,7 +543,7 @@ async fn test_backward_compatible() {
     // Old payload format:
     let id = svix_ksuid::Ksuid::new(None, None).to_base62();
     let org_payload_str = serde_json::to_string(&org_payload).unwrap();
-    let mut payload = Vec::with_capacity(id.len() + org_payload_str.as_bytes().len() + 1);
+    let mut payload = Vec::with_capacity(id.len() + org_payload_str.len() + 1);
     payload.extend(id.as_bytes());
     payload.push(b'|');
     payload.extend(org_payload_str.as_bytes());