diff --git a/changelog/64_UNRELEASED_xxxx.xx.xx.md b/changelog/64_UNRELEASED_xxxx.xx.xx.md
index 0fcbeb1e..ee4ef359 100644
--- a/changelog/64_UNRELEASED_xxxx.xx.xx.md
+++ b/changelog/64_UNRELEASED_xxxx.xx.xx.md
@@ -5,4 +5,4 @@
 - A product picture can now be added when creating a product (was currently only possible when editing a product)
 
 ### API
-- Fixed that international characters were not allowed in API query filters
+- Fixed that international characters and spaces were not allowed in API query filters
diff --git a/controllers/BaseApiController.php b/controllers/BaseApiController.php
index 6b249e24..0943835a 100644
--- a/controllers/BaseApiController.php
+++ b/controllers/BaseApiController.php
@@ -10,7 +10,7 @@ class BaseApiController extends BaseController
 
 	const PATTERN_OPERATOR = '!?(=|~|<|>|(>=)|(<=)|(§))';
 
-	const PATTERN_VALUE = '[A-Za-z\p{L}\p{M}*_0-9.$#^|-]+';
+	const PATTERN_VALUE = '[A-Za-z\p{L}\p{M}*_0-9.$#^| -]+';
 
 	protected $OpenApiSpec = null;