diff --git a/.gitmodules b/.gitmodules
index a845d4e80..939bd4274 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "fossil-hr-watchface"]
 	path = fossil-hr-watchface
 	url = https://github.com/arjan-s/fossil-hr-watchface
+[submodule "jerryscript"]
+	path = jerryscript
+	url = https://github.com/jerryscript-project/jerryscript
diff --git a/jerryscript b/jerryscript
new file mode 160000
index 000000000..e8bc7a2b9
--- /dev/null
+++ b/jerryscript
@@ -0,0 +1 @@
+Subproject commit e8bc7a2b93a6edfa463458c8bb69fac2a36feb9e