diff --git a/src/script/lib/modals/customTransaction/customTransaction.html b/src/script/lib/modals/customTransaction/customTransaction.html
index 32646fd..007b782 100644
--- a/src/script/lib/modals/customTransaction/customTransaction.html
+++ b/src/script/lib/modals/customTransaction/customTransaction.html
@@ -6,7 +6,7 @@ <h3 class="modal-title" translate>customTransactionHeadline</h3>
     <alert ng-repeat="alert in alerts" type="alert.type" close="closeAlert($index)">{{alert.msg}}</alert>
 
     <alert ng-if="transactionMode == 'spend' && boundary.exceedsLowerLimit(user.balance - transactionValue) ||
-                  transactionMode == 'charge' && boundary.exceedsLowerLimit(user.balance + transactionValue)"
+                  transactionMode == 'charge' && boundary.exceedsUpperLimit(user.balance + transactionValue)"
            type="alert.type">
         <span translate>transactionBoundaryReached</span>
     </alert>
@@ -27,7 +27,7 @@ <h3 class="modal-title" translate>customTransactionHeadline</h3>
             ng-click="submitTransaction(transactionValue)"
             ng-if="transactionMode == 'spend'" translate>customTransactionPay</button>
     <button class="btn btn-lg btn-success"
-            ng-disabled="boundary.exceedsLowerLimit(user.balance + transactionValue)"
+            ng-disabled="boundary.exceedsUpperLimit(user.balance + transactionValue)"
             ng-click="submitTransaction(transactionValue)"
             ng-if="transactionMode == 'charge'" translate>customTransactionCharge</button>
     <button class="btn btn-lg btn-default" ng-click="cancel()" translate>cancel</button>