diff --git a/.gitmodules b/.gitmodules
index 36f0134..dfb87e4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "gdb/gdbinit"]
 	path = gdb/gdbinit
 	url = https://github.com/gdbinit/Gdbinit.git
+[submodule "gdb/gdbundle"]
+	path = gdb/gdbundle
+	url = https://github.com/memfault/gdbundle
diff --git a/gdb/gdbundle b/gdb/gdbundle
new file mode 160000
index 0000000..44f57cf
--- /dev/null
+++ b/gdb/gdbundle
@@ -0,0 +1 @@
+Subproject commit 44f57cfd16a0af3aaabbb8ac0f2f69c73ab9291e