diff --git a/changelog/unreleased/fix-acitivity-filter.md b/changelog/unreleased/fix-acitivity-filter.md
new file mode 100644
index 00000000000..826c7ecba38
--- /dev/null
+++ b/changelog/unreleased/fix-acitivity-filter.md
@@ -0,0 +1,6 @@
+Bugfix: Fixed activity filter depth
+
+Fixed activity filter 'depth:-1'
+
+https://github.com/owncloud/ocis/pull/10031
+https://github.com/owncloud/ocis/issues/9850
diff --git a/services/activitylog/pkg/service/http.go b/services/activitylog/pkg/service/http.go
index 4c2f54064d0..deaebe94658 100644
--- a/services/activitylog/pkg/service/http.go
+++ b/services/activitylog/pkg/service/http.go
@@ -240,6 +240,9 @@ func (s *ActivitylogService) getFilters(query string) (*provider.ResourceId, int
 				if err != nil {
 					return nil, limit, nil, nil, sortby, err
 				}
+				if depth == -1 {
+					break
+				}
 
 				prefilters = append(prefilters, func(a RawActivity) bool {
 					return a.Depth <= depth