diff --git a/appl/ftp/ftpd/ftpd.c b/appl/ftp/ftpd/ftpd.c
index ad7b81b16..78200a59d 100644
--- a/appl/ftp/ftpd/ftpd.c
+++ b/appl/ftp/ftpd/ftpd.c
@@ -2092,7 +2092,7 @@ static char *onefile[] = {
 };
 
 void
-list_file(const char *file)
+list_file(char *file)
 {
     if(use_builtin_ls) {
 	FILE *dout;
@@ -2107,9 +2107,9 @@ list_file(const char *file)
 	pdata = -1;
     } else {
 #ifdef HAVE_LS_A
-	char *cmd = "/bin/ls -lA %s";
+	const char *cmd = "/bin/ls -lA %s";
 #else
-	char *cmd = "/bin/ls -la %s";
+	const char *cmd = "/bin/ls -la %s";
 #endif
 	retrieve(cmd, file);
     }