diff --git a/__tests__/cairo1v2.test.ts b/__tests__/cairo1v2.test.ts
index e83119d2a..71fd988ee 100644
--- a/__tests__/cairo1v2.test.ts
+++ b/__tests__/cairo1v2.test.ts
@@ -163,7 +163,9 @@ describe('Cairo 1 Devnet', () => {
       const myCall0 = cairo1Contract.populate('test_u256', functionParameters);
       const res0 = await cairo1Contract.test_u256(myCall0.calldata);
       expect(res0).toBe(16n);
-
+      const myCall0a = cairo1Contract.populate('test_u256', { p1: 15 });
+      const res0a = await cairo1Contract.test_u256(myCall0a.calldata);
+      expect(res0a).toBe(16n);
       // using myCallData.compile result in meta-class
       const contractCallData: CallData = new CallData(cairo1Contract.abi);
       const myCalldata: Calldata = contractCallData.compile('test_u256', functionParameters);
diff --git a/src/utils/calldata/propertyOrder.ts b/src/utils/calldata/propertyOrder.ts
index 14f19b7d0..44d88b909 100644
--- a/src/utils/calldata/propertyOrder.ts
+++ b/src/utils/calldata/propertyOrder.ts
@@ -47,11 +47,6 @@ export default function orderPropsByAbi(
     if (isTypeEthAddress(abiType)) {
       return unorderedItem;
     }
-    if (isTypeStruct(abiType, structs)) {
-      const abiOfStruct = structs[abiType].members;
-      // eslint-disable-next-line @typescript-eslint/no-use-before-define
-      return orderStruct(unorderedItem, abiOfStruct);
-    }
     if (isTypeUint256(abiType)) {
       const u256 = unorderedItem;
       if (typeof u256 !== 'object') {
@@ -63,6 +58,11 @@ export default function orderPropsByAbi(
       }
       return { low: u256.low, high: u256.high };
     }
+    if (isTypeStruct(abiType, structs)) {
+      const abiOfStruct = structs[abiType].members;
+      // eslint-disable-next-line @typescript-eslint/no-use-before-define
+      return orderStruct(unorderedItem, abiOfStruct);
+    }
     // litterals
     return unorderedItem;
   };
diff --git a/src/utils/encode.ts b/src/utils/encode.ts
index e72d13fcc..cb0110c2b 100644
--- a/src/utils/encode.ts
+++ b/src/utils/encode.ts
@@ -80,7 +80,9 @@ export function utf8ToArray(str: string): Uint8Array {
  * @returns string
  */
 export const pascalToSnake = (text: string) =>
-  text
-    .split(/(?=[A-Z])/)
-    .join('_')
-    .toUpperCase();
+  !/[a-z]/.test(text)
+    ? text
+        .split(/(?=[A-Z])/)
+        .join('_')
+        .toUpperCase()
+    : text;