diff -r 372adeda3b22 -r 82b1f8bc93a9 src/compiler/NameBinding.cpp
--- a/src/compiler/NameBinding.cpp	Fri Dec 28 22:47:05 2012 -0800
+++ b/src/compiler/NameBinding.cpp	Sat Dec 29 00:12:27 2012 -0800
@@ -572,15 +572,16 @@
 
             // Do some extra inference based on the initializer, if present.
             Expression *init = node->initialization();
-            if (init &&
-                init->isArrayLiteral() &&
-                init->toArrayLiteral()->isFixed())
-            {
-                Local<Type> contained(zone_, type->isArray()
-                                             ? ArrayType::cast(type)->contained()
-                                             : type);
-                if (!inferFixedArrayDimensions(init->toArrayLiteral(), contained, dims, levels))
-                    return;
+            if (init) {
+                if (init->isArrayLiteral() && init->toArrayLiteral()->isFixed()) {
+                    Local<Type> contained(zone_, type->isArray()
+                                                 ? ArrayType::cast(type)->contained()
+                                                 : type);
+                    if (!inferFixedArrayDimensions(init->toArrayLiteral(), contained, dims, levels))
+                        return;
+                } else if (init->isStringLiteral()) {
+                    dims[levels - 1] = init->toStringLiteral()->string()->length() + 1;
+                }
             }
 
             // If we got extra dimensions, we need to build a new type.