diff --git a/log.c b/log.c
index 8015a914..b1ed320d 100644
--- a/log.c
+++ b/log.c
@@ -36,7 +36,6 @@ extern int allow_8bit_chars;
 extern int protocol_version;
 extern int always_checksum;
 extern int preserve_times;
-extern int human_readable;
 extern int msgs2stderr;
 extern int stdout_format_has_i;
 extern int stdout_format_has_o_or_i;