diff --git a/compiler/cpp/src/thrifty.yy b/compiler/cpp/src/thrifty.yy
old mode 100644
new mode 100755
index b543552..8814332
--- a/compiler/cpp/src/thrifty.yy
+++ b/compiler/cpp/src/thrifty.yy
@@ -675,7 +675,7 @@
       $$ = new t_const_value();
       $$->set_integer($1);
       if (!g_allow_64bit_consts && ($1 < INT32_MIN || $1 > INT32_MAX)) {
-        pwarning(1, "64-bit constant \"%"PRIi64"\" may not work in all languages.\n", $1);
+        pwarning(1, "64-bit constant \"%" PRIi64"\" may not work in all languages.\n", $1);
       }
     }
 | tok_dub_constant
@@ -987,7 +987,7 @@
              * warn if the user-specified negative value isn't what
              * thrift would have auto-assigned.
              */
-            pwarning(1, "Nonpositive field key (%"PRIi64") differs from what would be "
+            pwarning(1, "Nonpositive field key (%" PRIi64") differs from what would be "
                      "auto-assigned by thrift (%d).\n", $1, y_field_val);
           }
           /*