diff --git a/gitmodules b/gitmodules
index b694432f226cde4152c7464c67c460ef071103de..96987540fec3c6d0af9fea76464011a4f8f2c4f4 100644
--- a/gitmodules
+++ b/gitmodules
@@ -1,6 +1,3 @@
-[submodule "project_ws/src/catkin_simple"]
-	path = project_ws/src/catkin_simple
-	url = git@github.com:catkin/catkin_simple.git
 [submodule "project_ws/src/gflags_catkin"]
 	path = project_ws/src/gflags_catkin
 	url = git@github.com:ethz-asl/gflags_catkin.git