1 files changed, 1 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
index 183f8c5..9432ed1 100644
--- a/src/util.h
+++ b/src/util.h
@@ -4,5 +4,6 @@
 #define UNUSED(x) ((void)x)
 
 void runes_warn(const char *fmt, ...);
+int sprintf_dup(char **out, const char *fmt, ...);
 
 #endif