diff --git a/r2/r2/lib/configparse.py b/r2/r2/lib/configparse.py
index cf8e6b876..3b0173a10 100644
--- a/r2/r2/lib/configparse.py
+++ b/r2/r2/lib/configparse.py
@@ -47,6 +47,14 @@ class ConfigValue(object):
     def tuple(v, key=None, data=None):
         return tuple(ConfigValue.to_iter(v))
 
+    @staticmethod
+    def dict(key_type, value_type):
+        def parse(v, key=None, data=None):
+            return {key_type(x): value_type(y)
+                    for x, y in (
+                        i.split(':', 1) for i in ConfigValue.to_iter(v))}
+        return parse
+
     @staticmethod
     def choice(v, key, data):
         if v not in data: