diff --git a/packages/blue-sdk/src/market/MarketUtils.ts b/packages/blue-sdk/src/market/MarketUtils.ts
index e364083f..4a26bf63 100644
--- a/packages/blue-sdk/src/market/MarketUtils.ts
+++ b/packages/blue-sdk/src/market/MarketUtils.ts
@@ -26,7 +26,7 @@ export namespace MarketUtils {
         market.collateralToken.substring(2).toLowerCase().padStart(64, "0") +
         market.oracle.substring(2).padStart(64, "0") +
         market.irm.substring(2).toLowerCase().padStart(64, "0") +
-        market.lltv.toString(16).padStart(64, "0"),
+        BigInt(market.lltv).toString(16).padStart(64, "0"),
     ).toString("hex")}` as MarketId;
   }
 
diff --git a/packages/blue-sdk/src/maths/AdaptiveCurveIrmLib.ts b/packages/blue-sdk/src/maths/AdaptiveCurveIrmLib.ts
index 7bfca995..d25d3797 100644
--- a/packages/blue-sdk/src/maths/AdaptiveCurveIrmLib.ts
+++ b/packages/blue-sdk/src/maths/AdaptiveCurveIrmLib.ts
@@ -156,13 +156,16 @@ export namespace AdaptiveCurveIrmLib {
     if (borrowRate >= rateAtTarget) {
       const maxBorrowRate = MathLib.wMulDown(rateAtTarget, CURVE_STEEPNESS);
 
+      const diffToMaxBorrowRate = maxBorrowRate - rateAtTarget;
+      if (diffToMaxBorrowRate === 0n) return MathLib.WAD;
+
       return MathLib.min(
         MathLib.WAD,
         TARGET_UTILIZATION +
           MathLib.mulDivDown(
             MathLib.WAD - TARGET_UTILIZATION,
             borrowRate - rateAtTarget,
-            maxBorrowRate - rateAtTarget,
+            diffToMaxBorrowRate,
           ),
       );
     }