diff --git a/.gitmodules b/.gitmodules
index 248231466d..f184df9f24 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -37,3 +37,7 @@
 	path = firmware/ext/openblt
 	url = https://github.com/rusefi/openblt
 	branch = rusefi_prod
+[submodule "misc/hex2dfu"]
+	path = misc/hex2dfu
+	url = https://github.com/rusefi/hex2dfu
+	branch = rusefi_prod
diff --git a/misc/hex2dfu b/misc/hex2dfu
new file mode 160000
index 0000000000..02535ca53a
--- /dev/null
+++ b/misc/hex2dfu
@@ -0,0 +1 @@
+Subproject commit 02535ca53a95bf3ae9a4a37312a9eadd65d934eb