diff --git a/debian/changelog b/debian/changelog
index d958b60..ce7c163 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,7 +2,7 @@ lql-api (0.0.12-alpha) UNRELEASED; urgency=medium
 
   * Add hosts_* filter, change service_* filter
 
- -- René Jochum <rene@webmeisterei.com>  Mon, 05 Oct 2020 01:33:42 +0200
+ -- René Jochum <rene@webmeisterei.com>  Mon, 05 Oct 2020 02:22:54 +0200
 
 lql-api (0.0.11-alpha) UNRELEASED; urgency=medium
 
diff --git a/lql/v1table.go b/lql/v1table.go
index b727cef..f124734 100644
--- a/lql/v1table.go
+++ b/lql/v1table.go
@@ -117,7 +117,7 @@ func v1TableGet(c *gin.Context, params *v1TableGetParams) ([]gin.H, error) {
 				filters = append(filters, addFilters...)
 				continue
 			}
-			if filter[0:7] != "Filter:" {
+			if filter[0:7] != "Filter:" || filter[0:7] != "NEGATE:" || filter[0:3] != "OR:" || filter[0:4] != "AND:" {
 				return nil, fmt.Errorf("Invalid Filter '%s' given", filter)
 			}