diff --git a/.gitmodules b/.gitmodules
index f926f12..de71102 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,7 @@
 [submodule "3rdparty/lzfse"]
 	path = 3rdparty/lzfse
 	url = https://github.com/lzfse/lzfse.git
+
+[submodule "3rdparty/libzbitmap"]
+	path = 3rdparty/libzbitmap
+	url = https://github.com/eafer/libzbitmap.git