diff --git a/changelog/unreleased/filter-hidden-files.md b/changelog/unreleased/filter-hidden-files.md
new file mode 100644
index 00000000000..5e69e406b3f
--- /dev/null
+++ b/changelog/unreleased/filter-hidden-files.md
@@ -0,0 +1,7 @@
+Enhancement: Add the "hidden" state to the search index
+
+We changed the search service to store the "hidden" state of entries in the
+search index. That will allow for filtering/searching hidden files in the
+future.
+
+https://github.com/owncloud/ocis/pull/5018
diff --git a/services/search/pkg/search/index/index.go b/services/search/pkg/search/index/index.go
index 3a274d1afcf..fd1fb374da2 100644
--- a/services/search/pkg/search/index/index.go
+++ b/services/search/pkg/search/index/index.go
@@ -56,6 +56,7 @@ type indexDocument struct {
 	Type     uint64
 
 	Deleted bool
+	Hidden  bool
 }
 
 // Index represents a bleve based search index
@@ -297,6 +298,7 @@ func toEntity(ref *sprovider.Reference, ri *sprovider.ResourceInfo) *indexDocume
 		MimeType: ri.MimeType,
 		Type:     uint64(ri.Type),
 		Deleted:  false,
+		Hidden:   strings.HasPrefix(ri.Path, "."),
 	}
 
 	if ri.Mtime != nil {
@@ -318,6 +320,7 @@ func fieldsToEntity(fields map[string]interface{}) *indexDocument {
 		MimeType: fields["MimeType"].(string),
 		Type:     uint64(fields["Type"].(float64)),
 		Deleted:  fields["Deleted"].(bool),
+		Hidden:   fields["Hidden"].(bool),
 	}
 	return doc
 }
diff --git a/services/search/pkg/search/index/index_test.go b/services/search/pkg/search/index/index_test.go
index 1708b766842..66e363520ac 100644
--- a/services/search/pkg/search/index/index_test.go
+++ b/services/search/pkg/search/index/index_test.go
@@ -176,6 +176,16 @@ var _ = Describe("Index", func() {
 				assertDocCount(ref.ResourceId, `Name:1234*`, 1)
 			})
 
+			It("filters hidden files", func() {
+				ri.Path = ".hidden.pdf"
+				ref.Path = "./" + ri.Path
+				err := i.Add(ref, ri)
+				Expect(err).ToNot(HaveOccurred())
+
+				assertDocCount(ref.ResourceId, `Name:*hidden* +Hidden:T`, 1)
+				assertDocCount(ref.ResourceId, `Name:*hidden* +Hidden:F`, 0)
+			})
+
 			Context("with a file in the root of the space", func() {
 				JustBeforeEach(func() {
 					err := i.Add(ref, ri)