diff --git a/.gitmodules b/.gitmodules
index ce69594e..9cb9231e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "submodules/WENOEXT"]
 	path = submodules/WENOEXT
 	url = https://github.com/WENO-OF/WENOEXT.git
+[submodule "submodules/lagrangianExtraFunctionObjects-OF5x"]
+	path = submodules/lagrangianExtraFunctionObjects-OF5x
+	url = https://github.com/blueCFD/lagrangianExtraFunctionObjects.git