diff --git a/Xcode/scripts/increment_version.pl b/Xcode/scripts/increment_version.pl
index d0a8956f17..319a6e0fdf 100644
--- a/Xcode/scripts/increment_version.pl
+++ b/Xcode/scripts/increment_version.pl
@@ -14,6 +14,7 @@ print FH <<"EOF";
 extern const unsigned long version_num = $ver;
 extern const char *const version_date = "$date";
 extern const char *const version_time = "$time";
+extern char const * const product_version = "5.0-git-UNKNOWN";
 EOF
 close FH;
 move '.ver.tmp', 'ver.cpp';