diff --git a/Elm.cabal b/Elm.cabal
--- a/Elm.cabal
+++ b/Elm.cabal
@@ -1,5 +1,5 @@
 Name:                Elm
-Version:             0.10
+Version:             0.10.0.1
 Synopsis:            The Elm language module.
 Description:         Elm aims to make client-side web-development more pleasant.
                      It is a statically/strongly typed, functional reactive
diff --git a/data/elm-runtime.js b/data/elm-runtime.js
--- a/data/elm-runtime.js
+++ b/data/elm-runtime.js
@@ -35,7 +35,7 @@
       mod:mod,
 
       pi:Math.PI,
-      e:Math.e,
+      e:Math.E,
       cos:Math.cos,
       sin:Math.sin,
       tan:Math.tan,
@@ -888,7 +888,7 @@
             return v ? "True" : "False";
         } else if (type === "number") {
             return v+"";
-        } else if (v.isChar && v instanceof String) {
+        } else if ((v instanceof String) && v.isChar) {
             return "'" + addSlashes(v) + "'";
         } else if (type === "string") {
             return '"' + addSlashes(v) + '"';