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1 files changed, 1 insertions, 0 deletions

diff --git a/packages/order-watcher/src/order_watcher/dependent_order_hashes_tracker.ts b/packages/order-watcher/src/order_watcher/dependent_order_hashes_tracker.ts
index 4c8585985..a956a94db 100644
--- a/packages/order-watcher/src/order_watcher/dependent_order_hashes_tracker.ts
+++ b/packages/order-watcher/src/order_watcher/dependent_order_hashes_tracker.ts
@@ -89,6 +89,7 @@ export class DependentOrderHashesTracker {
                 (decodedMakerAssetData as ERC721AssetData).tokenId,
             );
         }
+        // If makerToken === ZRX then we already removed it and we don't need to remove it again.
         if ((decodedMakerAssetData as ERC20AssetData).tokenAddress !== this._zrxTokenAddress) {
             this._removeFromERC20DependentOrderhashes(signedOrder, this._zrxTokenAddress);
         }