diff --git a/changelog/55_UNRELEASED_2019-xx-xx.md b/changelog/55_UNRELEASED_2019-xx-xx.md
index a52c6ca0..7ba8f5c6 100644
--- a/changelog/55_UNRELEASED_2019-xx-xx.md
+++ b/changelog/55_UNRELEASED_2019-xx-xx.md
@@ -4,6 +4,9 @@
   - From there you can also edit the stock entries
 - A huge THANK YOU goes to @kriddles for the work on this feature
 
+### Stock fixes
+- Fixed that entering partial amounts was not possible on the inventory page (only applies if the product option "Allow partial units in stock" is enabled)
+
 ### Shopping list fixes
 - Fixed that when `FEATURE_FLAG_SHOPPINGLIST_MULTIPLE_LISTS` was set to `false`, the shopping list appeared empty after some actions
 
diff --git a/services/StockService.php b/services/StockService.php
index 2e42dd20..efde1419 100644
--- a/services/StockService.php
+++ b/services/StockService.php
@@ -604,7 +604,7 @@ class StockService extends BaseService
 
 		return $returnValue;
 	}
-	public function InventoryProduct(int $productId, int $newAmount, $bestBeforeDate, $locationId = null, $price = null)
+	public function InventoryProduct(int $productId, float $newAmount, $bestBeforeDate, $locationId = null, $price = null)
 	{
 		if (!$this->ProductExists($productId))
 		{