diff --git a/src/repositories/myRepository.js b/src/repositories/myRepository.js
index b9996fb2370f938acae08aced61476f40c9c77e0..99266262cb936c8649e7493e4c180658281afc1c 100644
--- a/src/repositories/myRepository.js
+++ b/src/repositories/myRepository.js
@@ -37,8 +37,8 @@ const myRepository = {
   async getCombinationIdByTransactionId(transactionId) {
     const query = `
       SELECT combination_id
-      FROM Pcregister_Transection
-      WHERE transection_id = $1
+      FROM pcregister_transection
+      WHERE transaction_id = $1
     `;
     const values = [transactionId];
     const { rows } = await pool.query(query, values);
diff --git a/src/routes/my.js b/src/routes/my.js
index 271da45b2525459f08d8916f39f214e08e9f9595..89889658c110626fdc645a61bcae069c19b7bc58 100644
--- a/src/routes/my.js
+++ b/src/routes/my.js
@@ -33,7 +33,11 @@ myRouter.patch(
       throw new ReportableError(400, '유효한 새로운 이름이 필요합니다.');
     }
 
-    const result = await myService.updateCombinationName(userId, combinationId, newName);
+    const result = await myService.updateCombinationName(
+      userId,
+      combinationId,
+      newName
+    );
 
     return res.status(200).json(result);
   })
diff --git a/src/services/myService.js b/src/services/myService.js
index b7b7319be1704a1f76fd9ce409a6aecbeb34f828..385b1e432008c9c8b77bf8e09308b387ee028ea6 100644
--- a/src/services/myService.js
+++ b/src/services/myService.js
@@ -74,9 +74,8 @@ const myService = {
     return { code };
   },
 
-  async getCombinationId(req, res) {
-    const { code } = req.params;
-    const transactionIdKey = `mypc:code:${code}:transectionId`;
+  async getCombinationId(code) {
+    const transactionIdKey = `mypc:code:${code}:transaction_id`;
 
     try {
       const transactionId = await Redis.get(transactionIdKey);
@@ -90,9 +89,9 @@ const myService = {
       const combinationId =
         await myRepository.getCombinationIdByTransactionId(transactionId);
 
-      res.sendResponse('', 200, {
+      return {
         combinationId: combinationId || null,
-      });
+      };
     } catch {
       throw new ReportableError(
         500,