diff --git a/common/src/indexer_service/http/config.rs b/common/src/indexer_service/http/config.rs
index b68198de..e4a7d3ac 100644
--- a/common/src/indexer_service/http/config.rs
+++ b/common/src/indexer_service/http/config.rs
@@ -36,6 +36,7 @@ pub struct IndexerServiceConfig {
     pub network_subgraph: SubgraphConfig,
     pub escrow_subgraph: SubgraphConfig,
     pub graph_network: GraphNetworkConfig,
+    pub scalar: ScalarConfig,
 }
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
@@ -54,3 +55,9 @@ pub struct IndexerConfig {
     pub indexer_address: Address,
     pub operator_mnemonic: String,
 }
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct ScalarConfig {
+    pub chain_id: u64,
+    pub receipts_verifier_address: Address,
+}
diff --git a/common/src/indexer_service/http/indexer_service.rs b/common/src/indexer_service/http/indexer_service.rs
index 6776332e..63befe19 100644
--- a/common/src/indexer_service/http/indexer_service.rs
+++ b/common/src/indexer_service/http/indexer_service.rs
@@ -263,11 +263,11 @@ impl IndexerService {
             database,
             allocations,
             escrow_accounts,
-            // TODO: arguments for eip712_domain should be a config
             eip712_domain! {
                 name: "TapManager",
                 version: "1",
-                verifying_contract: options.config.indexer.indexer_address,
+                chain_id: options.config.scalar.chain_id,
+                verifying_contract: options.config.scalar.receipts_verifier_address,
             },
         );