diff --git a/app/Support/JsonApi/Enrichments/PiggyBankEnrichment.php b/app/Support/JsonApi/Enrichments/PiggyBankEnrichment.php
index 6a50ff421e..5133b2ef40 100644
--- a/app/Support/JsonApi/Enrichments/PiggyBankEnrichment.php
+++ b/app/Support/JsonApi/Enrichments/PiggyBankEnrichment.php
@@ -126,7 +126,7 @@ class PiggyBankEnrichment implements EnrichmentInterface
                     'pc_current_amount' => '0',
                 ];
             }
-            $this->amounts[$id][$accountId]['current_amount'] = bcadd($this->amounts[$id][$accountId]['current_amount'], $item->current_amount);
+            $this->amounts[$id][$accountId]['current_amount'] = bcadd($this->amounts[$id][$accountId]['current_amount'], (string) $item->current_amount);
             if (null !== $this->amounts[$id][$accountId]['pc_current_amount'] && null !== $item->native_current_amount) {
                 $this->amounts[$id][$accountId]['pc_current_amount'] = bcadd($this->amounts[$id][$accountId]['pc_current_amount'], $item->native_current_amount);
             }
diff --git a/changelog.md b/changelog.md
index 6b1a082045..a093873ef0 100644
--- a/changelog.md
+++ b/changelog.md
@@ -25,6 +25,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - [Issue 10804](https://github.com/firefly-iii/firefly-iii/issues/10804) (No notes information included in the "List all accounts" API call) reported by @gpampuro
 - [Issue 10808](https://github.com/firefly-iii/firefly-iii/issues/10808) (cron job Error: Undefined variable $preference) reported by @MexerSam
 - [Issue 10813](https://github.com/firefly-iii/firefly-iii/issues/10813) (Error "Argument #2 ($symbol) must be of type string" while try open subscriptions section) reported by @mrResident
+- #10819
 
 ### API
 
diff --git a/tests/integration/Api/About/AboutControllerTest.php b/tests/integration/Api/System/AboutControllerTest.php
similarity index 100%
rename from tests/integration/Api/About/AboutControllerTest.php
rename to tests/integration/Api/System/AboutControllerTest.php