diff --git a/src/store/index.js b/src/store/index.js
index 54192a1f..eec2a8c4 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -1280,14 +1280,14 @@ function addPricesToLineItems(lineItems, pricingLineItems) {
   return lineItems; 
 }
 
-function getLineItemQueryStringForPricing(lineItems) {
-  return lineItems
-        .map((lineItem) => {
-          let queryStringSnippet = `&LineItems=${lineItem.partNumber}`;
-          if (lineItem.childParts) {
-            queryStringSnippet += getLineItemQueryStringForPricing(lineItem.childParts);
-        }
+function getLineItemQueryStringForPricing(lineItems){
+  return lineItems.map((lineItem, index) => {
+    let queryStringSnippet = `&LineItems[${index}].partNumber=${lineItem.partNumber}`;
+      if (lineItem.childParts) {
+        queryStringSnippet += getLineItemQueryStringForPricing(lineItem.childParts);
+      }
+      
       return queryStringSnippet;
-    })
-    .join('');
+  }).join('');
 }
+