diff --git a/.gitmodules b/.gitmodules
index a3f3b52cfd..5472e86dd0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -550,3 +550,4 @@
 [submodule "callable_traits"]
 	path = libs/callable_traits
 	url = ../callable_traits.git
+	fetchRecurseSubmodules = on-demand