diff --git a/changelog/55_UNRELEASED_2019-xx-xx.md b/changelog/55_UNRELEASED_2019-xx-xx.md
index a4be6368..0ca3215f 100644
--- a/changelog/55_UNRELEASED_2019-xx-xx.md
+++ b/changelog/55_UNRELEASED_2019-xx-xx.md
@@ -25,6 +25,7 @@
 
 ### API improvements/fixes
 - Fixed that the route `/stock/barcodes/external-lookup/{barcode}` did not work, because the `barcode` argument was expected as a route argument but the route was missing it (thanks @Mikhail5555 and @beetle442002)
+- Fixed the response type description of the `/stock/volatile` endpoint
 - New endpoints for the stock transfer & stock entry edit capabilities mentioned above
 
 ### General & other improvements/fixes
diff --git a/grocy.openapi.json b/grocy.openapi.json
index 4fd92a4d..2c981663 100644
--- a/grocy.openapi.json
+++ b/grocy.openapi.json
@@ -4080,7 +4080,20 @@
 					"missing_products": {
 						"type": "array",
 						"items": {
-							"$ref": "#/components/schemas/CurrentStockResponse"
+							"properties": {
+								"id": {
+									"type": "integer"
+								},
+								"name": {
+									"type": "string"
+								},
+								"amount_missing": {
+									"type": "number"
+								},
+								"is_partly_in_stock": {
+									"type": "integer"
+								}
+							}
 						}
 					}
 				}