diff --git a/channeld/channeld.c b/channeld/channeld.c
index 13c5a4fcd..5d3ae1dde 100644
--- a/channeld/channeld.c
+++ b/channeld/channeld.c
@@ -1494,7 +1494,7 @@ static u8 *send_commit_part(struct peer *peer,
 	 * send unless negotiated */
 	if (feature_negotiated(peer->our_features,
 			       peer->their_features,
-			       OPT_SPLICE)) {
+			       OPT_EXPERIMENTAL_SPLICE)) {
 		status_debug("send_commit_part(splice: %d, remote_splice: %d)",
 			     (int)splice_amnt, (int)remote_splice_amnt);
 
diff --git a/common/features.c b/common/features.c
index 89c1bd047..daeaa5875 100644
--- a/common/features.c
+++ b/common/features.c
@@ -142,7 +142,7 @@ static const struct feature_style feature_styles[] = {
 	{ OPT_PROVIDE_PEER_BACKUP_STORAGE,
 	  .copy_style = { [INIT_FEATURE] = FEATURE_REPRESENT,
 			  [NODE_ANNOUNCE_FEATURE] = FEATURE_REPRESENT } },
-	{ OPT_SPLICE,
+	{ OPT_EXPERIMENTAL_SPLICE,
 	  .copy_style = { [INIT_FEATURE] = FEATURE_REPRESENT,
 			  [NODE_ANNOUNCE_FEATURE] = FEATURE_REPRESENT,
 			  [CHANNEL_FEATURE] = FEATURE_DONT_REPRESENT} },
@@ -491,6 +491,41 @@ const char *feature_name(const tal_t *ctx, size_t f)
 		NULL,
 		NULL,
 		NULL, /* 100/101 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 110/111 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 120/121 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 130/131 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 140/141 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 150/151 */
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 160/161 */
+		"option_experimental_splice", /* https://github.com/lightning/bolts/pull/863 */
+		NULL,
+		NULL,
+		NULL,
+		NULL, /* 170/171 */
 	};
 
 	if (f / 2 >= ARRAY_SIZE(fnames) || !fnames[f / 2])
diff --git a/common/features.h b/common/features.h
index 31728d1f2..27e0811ab 100644
--- a/common/features.h
+++ b/common/features.h
@@ -136,7 +136,11 @@ struct feature_set *feature_set_dup(const tal_t *ctx,
 #define OPT_SHUTDOWN_ANYSEGWIT			26
 #define OPT_CHANNEL_TYPE			44
 #define OPT_PAYMENT_METADATA			48
-#define OPT_SPLICE				62
+
+/* BOLT-splice #9:
+ * | 62/63 | `option_splice` |  ... IN ...
+ */
+#define OPT_EXPERIMENTAL_SPLICE			162
 
 /* BOLT-f53ca2301232db780843e894f55d95d512f297f9 #9:
  * | 28/29 | `option_dual_fund` | ... IN9 ...
diff --git a/contrib/pyln-client/pyln/client/gossmap.py b/contrib/pyln-client/pyln/client/gossmap.py
index ad6e681b8..88641cbba 100755
--- a/contrib/pyln-client/pyln/client/gossmap.py
+++ b/contrib/pyln-client/pyln/client/gossmap.py
@@ -74,6 +74,7 @@ class LnFeatureBits(object):
     OPTION_PROPOSED_UPFRONT_FEE = 56                # IN9       #1052
     OPTION_PROPOSED_CLOSING_REJECTED = 60           # IN        #1016
     OPTION_PROPOSED_SPLICE = 62                     # IN        #863
+    OPTION_PROPOSED_EXPERIMENTAL_SPLICE = 162       # IN        #863
 
 
 def _parse_features(featurebytes):
diff --git a/lightningd/channel_control.c b/lightningd/channel_control.c
index cd59faf91..ab698564b 100644
--- a/lightningd/channel_control.c
+++ b/lightningd/channel_control.c
@@ -1869,7 +1869,7 @@ static struct command_result *param_channel_for_splice(struct command *cmd,
 
 	if (!feature_negotiated(cmd->ld->our_features,
 			        (*channel)->peer->their_features,
-				OPT_SPLICE))
+				OPT_EXPERIMENTAL_SPLICE))
 		return command_fail(cmd, SPLICE_NOT_SUPPORTED,
 				    "splicing not supported");
 
diff --git a/lightningd/options.c b/lightningd/options.c
index e1a30d3e6..856a1086e 100644
--- a/lightningd/options.c
+++ b/lightningd/options.c
@@ -1196,7 +1196,7 @@ static char *opt_set_splicing(struct lightningd *ld)
 						    OPTIONAL_FEATURE(OPT_QUIESCE))));
 	feature_set_or(ld->our_features,
 		       take(feature_set_for_feature(NULL,
-						    OPTIONAL_FEATURE(OPT_SPLICE))));
+						    OPTIONAL_FEATURE(OPT_EXPERIMENTAL_SPLICE))));
 	return NULL;
 }
 
@@ -1911,7 +1911,7 @@ void add_config_deprecated(struct lightningd *ld,
 			json_add_bool(response, name0,
 				      feature_offered(ld->our_features
 						      ->bits[INIT_FEATURE],
-						      OPT_SPLICE));
+						      OPT_EXPERIMENTAL_SPLICE));
 		} else if (opt->cb == (void *)opt_set_onion_messages) {
 			json_add_bool(response, name0,
 				      feature_offered(ld->our_features
diff --git a/tests/utils.py b/tests/utils.py
index 789b7b802..3063b89af 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -44,7 +44,7 @@ def expected_peer_features(wumbo_channels=False, extra=[]):
         features += [29]
     if EXPERIMENTAL_SPLICING:
         features += [35]  # option_quiesce
-        features += [63]  # option_splice
+        features += [163]  # option_experimental_splice
     return hex_bits(features + extra)
 
 
@@ -60,7 +60,7 @@ def expected_node_features(wumbo_channels=False, extra=[]):
         features += [29]
     if EXPERIMENTAL_SPLICING:
         features += [35]  # option_quiesce
-        features += [63]  # option_splice
+        features += [163]  # option_experimental_splice
     return hex_bits(features + extra)