diff --git a/src/components/ImpermanentLoss/getPrice.ts b/src/components/ImpermanentLoss/getPrice.ts
index a96d9f3c..5d55d115 100644
--- a/src/components/ImpermanentLoss/getPrice.ts
+++ b/src/components/ImpermanentLoss/getPrice.ts
@@ -128,7 +128,7 @@ export const buyImpLoss = async (
     contractAddress: IMP_LOSS_ADDRESS,
     entrypoint: "hedge",
     calldata: [
-      sizeRaw,
+      sizeRaw.toString(10),
       tokenPair.quoteToken.address,
       tokenPair.baseToken.address,
       expiry,