diff --git a/changelog/62_UNRELEASED_xxxx-xx-xx.md b/changelog/62_UNRELEASED_xxxx-xx-xx.md
index 54b891cc..faae5f18 100644
--- a/changelog/62_UNRELEASED_xxxx-xx-xx.md
+++ b/changelog/62_UNRELEASED_xxxx-xx-xx.md
@@ -1 +1,2 @@
 - Fixed that tracking chores with "Done by" a different user was not possible
+- Fixed that editing stock entries was not possible
diff --git a/helpers/extensions.php b/helpers/extensions.php
index 73296a3a..c17f6ab7 100644
--- a/helpers/extensions.php
+++ b/helpers/extensions.php
@@ -156,6 +156,11 @@ function BoolToString(bool $bool)
 	return $bool ? 'true' : 'false';
 }
 
+function BoolToInt(bool $bool)
+{
+	return $bool ? 1 : 0;
+}
+
 function ExternalSettingValue(string $value)
 {
 	$tvalue = rtrim($value, "\r\n");
diff --git a/services/StockService.php b/services/StockService.php
index 8aa04bf0..6cad4592 100644
--- a/services/StockService.php
+++ b/services/StockService.php
@@ -402,11 +402,11 @@ class StockService extends BaseService
 
 		$openedDate = $stockRow->opened_date;
 
-		if ($open && $openedDate == null)
+		if (boolval($open) && $openedDate == null)
 		{
 			$openedDate = date('Y-m-d');
 		}
-		elseif (!$open)
+		elseif (!boolval($open))
 		{
 			$openedDate = null;
 		}
@@ -418,7 +418,7 @@ class StockService extends BaseService
 			'location_id' => $locationId,
 			'shopping_location_id' => $shoppingLocationId,
 			'opened_date' => $openedDate,
-			'open' => $open,
+			'open' => BoolToInt($open),
 			'purchased_date' => $purchasedDate
 		]);