diff --git a/src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionController.java b/src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionController.java
index 9154b8f0..b8da7580 100644
--- a/src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionController.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionController.java
@@ -77,7 +77,6 @@ public class HsOfficeCoopAssetsTransactionController implements HsOfficeCoopAsse
 
     @Override
     @Transactional(readOnly = true)
-
     public ResponseEntity<HsOfficeCoopAssetsTransactionResource> getCoopAssetTransactionByUuid(
         final String currentSubject, final String assumedRoles, final UUID assetTransactionUuid) {
 
diff --git a/src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionControllerRestTest.java b/src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionControllerRestTest.java
index b64e0cae..b7f44b35 100644
--- a/src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionControllerRestTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionControllerRestTest.java
@@ -48,8 +48,8 @@ class HsOfficeCoopAssetsTransactionControllerRestTest {
 
     enum BadRequestTestCases {
         MEMBERSHIP_UUID_MISSING(
-                requestBody -> requestBody.without("membershipUuid"),
-                "[membership.uuid must not be null but is \"null\"]"),
+                requestBody -> requestBody.without("membership.uuid"),
+                "[membershipUuid must not be null but is \"null\"]"), // TODO.impl: should be membership.uuid, Spring validation-problem?
 
         TRANSACTION_TYPE_MISSING(
                 requestBody -> requestBody.without("transactionType"),