diff --git a/controllers/apiUsagePricing.js b/controllers/apiUsagePricing.js
index 9631bd5..9bfb763 100644
--- a/controllers/apiUsagePricing.js
+++ b/controllers/apiUsagePricing.js
@@ -201,7 +201,8 @@ const registerUsage = async (req, res) => {
         callerId,
         sessionId,
         companyId,
-        format
+        format,
+        usedTo
 
     } = req.body
 
@@ -235,7 +236,8 @@ const registerUsage = async (req, res) => {
             billingUnit,
             companyId,
             total_cost: calculateApiUsage(price, billingUnit, usage),
-            format
+            format,
+            usedTo
         })
 
         return res.status(StatusCodes.OK).json({ apiUsage })
diff --git a/models/API_Usage.js b/models/API_Usage.js
index af353ed..02025f1 100644
--- a/models/API_Usage.js
+++ b/models/API_Usage.js
@@ -48,7 +48,7 @@ const apiUsage = new Schema(
       type: String,
       enum: ["text", "audio", "image", "video"],
     },
-    used_to: {
+    usedTo: {
       type: String,
       enum: ["stt", "llm", "tts"],
     },