diff --git a/.gitmodules b/.gitmodules
index 3fb4df92..ecae0c52 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -481,3 +481,6 @@
 [submodule "repos/JLmod"]
 	path = repos/JLmod
 	url = https://github.com/JoakimLindbom/JLmod.git
+[submodule "repos/Interrobang"]
+	path = repos/Interrobang
+	url = https://github.com/jimallman/interrobang-rack-modules.git
diff --git a/repos/Interrobang b/repos/Interrobang
new file mode 160000
index 00000000..f1d90829
--- /dev/null
+++ b/repos/Interrobang
@@ -0,0 +1 @@
+Subproject commit f1d90829f0b5cca99b6c89d18f51b5d28a7f3b4d