diff --git a/.gitmodules b/.gitmodules
index 4cdd49288..e3457f740 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
 [submodule "ext/catch2"]
 	path = ext/catch2
 	url = https://github.com/catchorg/Catch2.git
+[submodule "ext/backward-cpp"]
+	path = ext/backward-cpp
+	url = https://github.com/bombela/backward-cpp.git