diff --git a/common/db/src/create_db.rs b/common/db/src/create_db.rs
index 101448b9..22162088 100644
--- a/common/db/src/create_db.rs
+++ b/common/db/src/create_db.rs
@@ -38,7 +38,7 @@ pub fn serai_db_key(
 #[macro_export]
 macro_rules! create_db {
   ($db_name: ident {
-    $($field_name: ident: ($($arg: ident: $arg_type: ty),*) -> $field_type: ty),*
+    $($field_name: ident: ($($arg: ident: $arg_type: ty),*) -> $field_type: ty$(,)?)*
   }) => {
     $(
       #[derive(Clone, Debug)]
diff --git a/coordinator/src/cosign_evaluator.rs b/coordinator/src/cosign_evaluator.rs
index 6507d729..5c45d414 100644
--- a/coordinator/src/cosign_evaluator.rs
+++ b/coordinator/src/cosign_evaluator.rs
@@ -29,7 +29,7 @@ use crate::{
 create_db! {
   CosignDb {
     ReceivedCosign: (set: ValidatorSet, block: [u8; 32]) -> Vec<u8>,
-    DistinctChain: (set: ValidatorSet) -> ()
+    DistinctChain: (set: ValidatorSet) -> (),
   }
 }
 
diff --git a/coordinator/src/substrate/db.rs b/coordinator/src/substrate/db.rs
index 437af37a..f5cde131 100644
--- a/coordinator/src/substrate/db.rs
+++ b/coordinator/src/substrate/db.rs
@@ -14,7 +14,7 @@ create_db! {
     CosignTriggered: () -> (),
     IntendedCosign: () -> (u64, Option<u64>),
     BlockHasEvents: (block: u64) -> u8,
-    CosignTransactions: (network: NetworkId) -> Vec<(Session, u64, [u8; 32])>
+    CosignTransactions: (network: NetworkId) -> Vec<(Session, u64, [u8; 32])>,
   }
 }
 
diff --git a/coordinator/src/tributary/db.rs b/coordinator/src/tributary/db.rs
index bd771642..f231c0a0 100644
--- a/coordinator/src/tributary/db.rs
+++ b/coordinator/src/tributary/db.rs
@@ -17,7 +17,7 @@ use crate::tributary::TributarySpec;
 
 create_db! {
   NewTributaryDb {
-    SeraiBlockNumber: (hash: [u8; 32]) -> u64
+    SeraiBlockNumber: (hash: [u8; 32]) -> u64,
   }
 }
 
diff --git a/coordinator/src/tributary/nonce_decider.rs b/coordinator/src/tributary/nonce_decider.rs
index 37dcbc65..409280f3 100644
--- a/coordinator/src/tributary/nonce_decider.rs
+++ b/coordinator/src/tributary/nonce_decider.rs
@@ -14,7 +14,7 @@ const PLAN_SIGNING_CODE: u8 = 3;
 create_db!(
   NonceDeciderDb {
     NextNonceDb: (genesis: [u8; 32]) -> u32,
-    ItemNonceDb: (genesis: [u8; 32], code: u8, id: &[u8]) -> u32
+    ItemNonceDb: (genesis: [u8; 32], code: u8, id: &[u8]) -> u32,
   }
 );
 
diff --git a/processor/src/cosigner.rs b/processor/src/cosigner.rs
index 4d552480..414c2d47 100644
--- a/processor/src/cosigner.rs
+++ b/processor/src/cosigner.rs
@@ -25,7 +25,7 @@ use crate::{Get, DbTxn, create_db};
 create_db! {
   CosignerDb {
     Completed: (id: [u8; 32]) -> (),
-    Attempt: (id: [u8; 32], attempt: u32) -> ()
+    Attempt: (id: [u8; 32], attempt: u32) -> (),
   }
 }
 
diff --git a/processor/src/key_gen.rs b/processor/src/key_gen.rs
index 1448819d..54762b87 100644
--- a/processor/src/key_gen.rs
+++ b/processor/src/key_gen.rs
@@ -39,7 +39,7 @@ create_db!(
     // These do assume a key is only used once across sets, which holds true so long as a single
     // participant is honest in their execution of the protocol
     KeysDb: (network_key: &[u8]) -> Vec<u8>,
-    NetworkKey: (substrate_key: [u8; 32]) -> Vec<u8>
+    NetworkKey: (substrate_key: [u8; 32]) -> Vec<u8>,
   }
 );