diff --git a/src/gasless/GaslessRelayer.ts b/src/gasless/GaslessRelayer.ts
index 18b8c5b2f2..5b0104ae8b 100644
--- a/src/gasless/GaslessRelayer.ts
+++ b/src/gasless/GaslessRelayer.ts
@@ -467,11 +467,16 @@ export class GaslessRelayer {
         outputToken,
         inputAmountForValidation,
         outputAmount,
-        exclusivityParameter,
+        exclusivityParameter: _exclusivityParameter,
         swapToken,
         swapTokenAmount,
       } = extractGaslessDepositFields(depositMessage);
 
+      // Ensure that exclusivityParameter is always absolute.
+      const exclusivityParameter = isExclusivityRelative(_exclusivityParameter)
+        ? _exclusivityParameter + getCurrentTime()
+        : _exclusivityParameter;
+
       const depositKey = this._getDepositKey(inputToken.toNative(), originChainId, depositId);
 
       const at = "GaslessRelayer#evaluateApiSignatures";