diff --git a/src/cmd/auxclog.c b/src/cmd/auxclog.c
index bd1da4c9..b2a21df8 100644
--- a/src/cmd/auxclog.c
+++ b/src/cmd/auxclog.c
@@ -2,6 +2,8 @@
 #include <libc.h>
 #include <bio.h>
 
+#define openlog auxclog_openlog	/* libc symbol on OS X */
+
 char *argv0;
 
 int