diff --git a/util.c b/util.c
index e6d127c1..3e4e0f40 100644
--- a/util.c
+++ b/util.c
@@ -84,7 +84,7 @@ int fd_pair(int fd[2])
 }
 
 
-void print_child_argv(char **cmd)
+static void print_child_argv(char **cmd)
 {
 	rprintf(FINFO, "opening connection using ");
 	for (; *cmd; cmd++) {