diff -r a631b01d1715 Include/compile.h
--- a/Include/compile.h	Tue Feb 11 10:26:53 2014 +0100
+++ b/Include/compile.h	Tue Feb 11 16:17:08 2014 +0530
@@ -27,6 +27,7 @@
 #define FUTURE_PRINT_FUNCTION "print_function"
 #define FUTURE_UNICODE_LITERALS "unicode_literals"
 #define FUTURE_BARRY_AS_BDFL "barry_as_FLUFL"
+#define FUTURE_BRACES "braces"
 
 struct _mod; /* Declare the existence of this type */
 #define PyAST_Compile(mod, s, f, ar) PyAST_CompileEx(mod, s, f, -1, ar)
diff -r a631b01d1715 Python/future.c
--- a/Python/future.c	Tue Feb 11 10:26:53 2014 +0100
+++ b/Python/future.c	Tue Feb 11 16:17:08 2014 +0530
@@ -40,7 +40,7 @@
             continue;
         } else if (strcmp(feature, FUTURE_BARRY_AS_BDFL) == 0) {
             ff->ff_features |= CO_FUTURE_BARRY_AS_BDFL;
-        } else if (strcmp(feature, "braces") == 0) {
+        } else if (strcmp(feature, FUTURE_BRACES) == 0) {
             PyErr_SetString(PyExc_SyntaxError,
                             "not a chance");
             PyErr_SyntaxLocationObject(filename, s->lineno, s->col_offset);