1 files changed, 2 insertions, 0 deletions
diff --git a/crawl-ref/source/libutil.h b/crawl-ref/source/libutil.h
index 2da46f421b..4378e029b3 100644
--- a/crawl-ref/source/libutil.h
+++ b/crawl-ref/source/libutil.h
@@ -21,6 +21,8 @@
 void lowercase(std::string &s);
 void uppercase(std::string &s);
 
+std::string make_stringf(const char *format, ...);
+
 std::string replace_all(std::string s,
                         const std::string &tofind,
                         const std::string &replacement);