diff --git a/.gitmodules b/.gitmodules
index e013bb3..4da888e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "vendor/caja_builder"]
 	path = vendor/caja_builder
 	url = git://github.com/tobie/unittest_js_caja_builder.git
+[submodule "vendor/pdoc"]
+  path = vendor/pdoc
+	url = git://github.com/tobie/pdoc.git
diff --git a/vendor/pdoc b/vendor/pdoc
new file mode 160000
index 0000000..91ca5da
--- /dev/null
+++ b/vendor/pdoc
@@ -0,0 +1 @@
+Subproject commit 91ca5da8b674c3b248361bbafa9f95c82649e115