diff --git a/ginger.cabal b/ginger.cabal
--- a/ginger.cabal
+++ b/ginger.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                ginger
-version:             0.6.0.0
+version:             0.6.0.1
 synopsis:            An implementation of the Jinja2 template language in Haskell
 description:         Ginger is Jinja, minus the most blatant pythonisms. Wants
                      to be feature complete, but isn't quite there yet.
diff --git a/src/Text/Ginger/Run/Type.hs b/src/Text/Ginger/Run/Type.hs
--- a/src/Text/Ginger/Run/Type.hs
+++ b/src/Text/Ginger/Run/Type.hs
@@ -311,9 +311,8 @@
 
 data RuntimeError = RuntimeError Text -- ^ Generic runtime error
                   | UndefinedBlockError Text -- ^ Tried to use a block that isn't defined
-                  | ArgumentsError -- ^ Invalid arguments to function
-                        Text -- ^ name of function being called
-                        Text -- ^ explanation
+                  -- r Invalid arguments to function (function name, explanation)
+                  | ArgumentsError Text Text
                   | EvalParseError ParserError
                   | NotAFunctionError
         deriving (Show)