1 files changed, 1 insertions, 0 deletions
diff --git a/src/os/os.h b/src/os/os.h
index 58d49d36e7..099f53312f 100644
--- a/src/os/os.h
+++ b/src/os/os.h
@@ -5,5 +5,6 @@
 
 long_u mch_total_mem(int special);
 int mch_chdir(char *path);
+int mch_dirname(char_u *buf, int len);
 
 #endif