diff --git a/ccan/base64/base64.c b/ccan/base64/base64.c
index 5e75dd71c..61cd5394a 100644
--- a/ccan/base64/base64.c
+++ b/ccan/base64/base64.c
@@ -213,42 +213,38 @@ ssize_t base64_decode_using_maps(const base64_maps_t *maps,
 static const base64_maps_t base64_maps_rfc4648 = {
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
 
-  "\xff\xff\xff\xff\xff" /* 0 */					\
-  "\xff\xff\xff\xff\xff" /* 5 */					\
-  "\xff\xff\xff\xff\xff" /* 10 */					\
-  "\xff\xff\xff\xff\xff" /* 15 */					\
-  "\xff\xff\xff\xff\xff" /* 20 */					\
-  "\xff\xff\xff\xff\xff" /* 25 */					\
-  "\xff\xff\xff\xff\xff" /* 30 */					\
-  "\xff\xff\xff\xff\xff" /* 35 */					\
-  "\xff\xff\xff\x3e\xff" /* 40 */					\
-  "\xff\xff\x3f\x34\x35" /* 45 */					\
-  "\x36\x37\x38\x39\x3a" /* 50 */					\
-  "\x3b\x3c\x3d\xff\xff" /* 55 */					\
-  "\xff\xff\xff\xff\xff" /* 60 */					\
-  "\x00\x01\x02\x03\x04" /* 65 A */					\
-  "\x05\x06\x07\x08\x09" /* 70 */					\
-  "\x0a\x0b\x0c\x0d\x0e" /* 75 */					\
-  "\x0f\x10\x11\x12\x13" /* 80 */					\
-  "\x14\x15\x16\x17\x18" /* 85 */					\
-  "\x19\xff\xff\xff\xff" /* 90 */					\
-  "\xff\xff\x1a\x1b\x1c" /* 95 */					\
-  "\x1d\x1e\x1f\x20\x21" /* 100 */					\
-  "\x22\x23\x24\x25\x26" /* 105 */					\
-  "\x27\x28\x29\x2a\x2b" /* 110 */					\
-  "\x2c\x2d\x2e\x2f\x30" /* 115 */					\
-  "\x31\x32\x33\xff\xff" /* 120 */					\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" /* 125 */			\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" /* 155 */			\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" /* 185 */			\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" /* 215 */			\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"				\
-  "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" /* 245 */
+  /*   0 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /*  10 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /*  20 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /*  30 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /*  40 */ "\xff\xff\xff\x3e\xff"				\
+  /*  45 */ "\xff\xff\x3f\x34\x35"				\
+  /*  50 */ "\x36\x37\x38\x39\x3a"				\
+  /*  55 */ "\x3b\x3c\x3d\xff\xff"				\
+  /*  60 */ "\xff\xff\xff\xff\xff"				\
+  /*  65 */ "\x00\x01\x02\x03\x04" /* A */			\
+  /*  70 */ "\x05\x06\x07\x08\x09"				\
+  /*  75 */ "\x0a\x0b\x0c\x0d\x0e"				\
+  /*  80 */ "\x0f\x10\x11\x12\x13"				\
+  /*  85 */ "\x14\x15\x16\x17\x18"				\
+  /*  90 */ "\x19\xff\xff\xff\xff"				\
+  /*  95 */ "\xff\xff\x1a\x1b\x1c"				\
+  /* 100 */ "\x1d\x1e\x1f\x20\x21"				\
+  /* 105 */ "\x22\x23\x24\x25\x26"				\
+  /* 110 */ "\x27\x28\x29\x2a\x2b"				\
+  /* 115 */ "\x2c\x2d\x2e\x2f\x30"				\
+  /* 120 */ "\x31\x32\x33\xff\xff"				\
+  /* 125 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 135 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 145 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 155 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 165 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 175 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 185 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 195 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 205 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 215 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 225 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 235 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"		\
+  /* 245 */ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
 };