diff --git a/.gitmodules b/.gitmodules
index d83fc7af..52687a2d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -42,3 +42,7 @@
 	path = web/documentserver-example/python/assets/document-formats
 	url = https://github.com/ONLYOFFICE/document-formats
 	branch = master
+[submodule "web/documentserver-example/ruby/assets/document-formats"]
+	path = web/documentserver-example/ruby/assets/document-formats
+	url = https://github.com/ONLYOFFICE/document-formats
+	branch = master
diff --git a/web/documentserver-example/ruby/assets/document-formats b/web/documentserver-example/ruby/assets/document-formats
new file mode 160000
index 00000000..6e38b176
--- /dev/null
+++ b/web/documentserver-example/ruby/assets/document-formats
@@ -0,0 +1 @@
+Subproject commit 6e38b17679e4939684b067a9175e3bc64cf7923c