diff --git a/.gitmodules b/.gitmodules
index 7d3a7ad3cd341f19428ce2091c3c9b86708d0d9d..85310cbfcfbabbc72804163d28c18cec10d397f5 100755
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,5 +7,6 @@
   url = https://github.com/cellframe/libdap
   branch = master 
 [submodule "libdap-server-core"]
-	path = libdap-server-core
-	url = https://github.com/cellframe/libdap-server-core
+  path = libdap-server-core
+  url = https://github.com/cellframe/libdap-server-core
+  branch = master