diff --git a/common/jsonrpc_errors.h b/common/jsonrpc_errors.h
index 9a19d0f2db01..ca69a9bfc0d9 100644
--- a/common/jsonrpc_errors.h
+++ b/common/jsonrpc_errors.h
@@ -112,6 +112,7 @@ enum jsonrpc_errcode {
 	OFFER_ROUTE_NOT_FOUND = 1003,
 	OFFER_BAD_INVREQ_REPLY = 1004,
 	OFFER_TIMEOUT = 1005,
+	OFFER_ALREADY_ENABLED = 1006,
 
 	/* Errors from datastore command */
 	DATASTORE_DEL_DOES_NOT_EXIST = 1200,
diff --git a/contrib/msggen/msggen/schema.json b/contrib/msggen/msggen/schema.json
index 6a8afdcc5b95..04085f206044 100644
--- a/contrib/msggen/msggen/schema.json
+++ b/contrib/msggen/msggen/schema.json
@@ -10998,6 +10998,12 @@
           "Note: the returned object is the same format as **listoffers**."
         ]
       },
+      "errors": [
+        "On failure, one of the following error codes may be returned:",
+        "",
+        "- -32602: Error in given parameters.",
+        "- 1006: offer already enabled."
+      ],
       "author": [
         "Rusty Russell <<rusty@rustcorp.com.au>> is mainly responsible."
       ],
diff --git a/doc/schemas/lightning-enableoffer.json b/doc/schemas/lightning-enableoffer.json
index fd6dee52747f..1970df3c335c 100644
--- a/doc/schemas/lightning-enableoffer.json
+++ b/doc/schemas/lightning-enableoffer.json
@@ -74,6 +74,12 @@
       "Note: the returned object is the same format as **listoffers**."
     ]
   },
+  "errors": [
+    "On failure, one of the following error codes may be returned:",
+    "",
+    "- -32602: Error in given parameters.",
+    "- 1006: offer already enabled."
+  ],
   "author": [
     "Rusty Russell <<rusty@rustcorp.com.au>> is mainly responsible."
   ],
diff --git a/lightningd/offer.c b/lightningd/offer.c
index faf892a52e66..e5a88e9872d9 100644
--- a/lightningd/offer.c
+++ b/lightningd/offer.c
@@ -253,7 +253,7 @@ static struct command_result *json_enableoffer(struct command *cmd,
 		return command_fail(cmd, LIGHTNINGD, "Unknown offer");
 
 	if (offer_status_active(status))
-		return command_fail(cmd, OFFER_ALREADY_DISABLED,
+		return command_fail(cmd, OFFER_ALREADY_ENABLED,
 				    "offer already active");
 
 	if (command_check_only(cmd))
diff --git a/tests/test_pay.py b/tests/test_pay.py
index 2c4b667dbd9f..296750e69316 100644
--- a/tests/test_pay.py
+++ b/tests/test_pay.py
@@ -5990,7 +5990,7 @@ def test_enableoffer(node_factory):
     l1.rpc.fetchinvoice(offer=offer1['bolt12'])
 
     # Can't enable twice.
-    with pytest.raises(RpcError, match="1001.*offer already active"):
+    with pytest.raises(RpcError, match="1006.*offer already active"):
         l2.rpc.enableoffer(offer_id=offer1['offer_id'])
 
     # Can't enable unknown.