diff -r d8379f5d5a1d -r 7797936ba34c src/Parser.cpp
--- a/src/Parser.cpp	Sun Jul 29 18:19:12 2012 -0700
+++ b/src/Parser.cpp	Sun Jul 29 19:24:55 2012 -0700
@@ -967,6 +967,7 @@
 
     if (!expect(TOK_LPAREN))
         return NULL;
+
     if (!match(TOK_RPAREN)) {
         while (true) {
             bool isConst = match(TOK_CONST);
@@ -1022,7 +1023,14 @@
                     return NULL;
             }
 
-            Parameter *parameter = new (pool_) Parameter(arg, tag, ref, isConst, postDimensions);
+            Expression *expr = NULL;
+            if (match(TOK_ASSIGN)) {
+                if ((expr = expression()) == NULL)
+                    return NULL;
+            }
+
+            Parameter *parameter = new (pool_) Parameter(arg, tag, ref, isConst, postDimensions,
+                                                         expr);
             if (!parameters->append(parameter))
                 return NULL;