diff --git a/commands/time.c b/commands/time.c
index 9a76945..c2633ba 100644
--- a/commands/time.c
+++ b/commands/time.c
@@ -10,7 +10,7 @@
 	unsigned char *buf;
 	u64 start, end, diff64;
 	unsigned long diff;
-	int len = 0;
+	int len = 1; /* '\0' */
 
 	if (argc < 2)
 		return COMMAND_ERROR_USAGE;