diff --git a/doc/lightning-decode.7.md b/doc/lightning-decode.7.md
index 108aed713..078e45a12 100644
--- a/doc/lightning-decode.7.md
+++ b/doc/lightning-decode.7.md
@@ -156,7 +156,7 @@ If **type** is "bolt11 invoice", and **valid** is *true*:
     - hops in the route:
       - **pubkey** (pubkey): the public key of the node
       - **short_channel_id** (short_channel_id): a channel to the next peer
-      - **fee_base_msat** (u32): the base fee for payments
+      - **fee_base_msat** (msat): the base fee for payments
       - **fee_proportional_millionths** (u32): the parts-per-million fee for payments
       - **cltv_expiry_delta** (u32): the CLTV delta across this hop
   - **extra** (array of objects, optional): Any extra fields we didn't know how to parse:
@@ -201,4 +201,4 @@ RESOURCES
 
 Main web site: <https://github.com/ElementsProject/lightning>
 
-[comment]: # ( SHA256STAMP:a3963c3e0061b0d42a1f9e2f2a9012df780fce0264c6785f0311909b01f78af2)
+[comment]: # ( SHA256STAMP:3e522a9788bb79302e4c4386c3937b7dcd8359d1b894364ac3e884bd3f695850)
diff --git a/doc/schemas/decode.schema.json b/doc/schemas/decode.schema.json
index 70d305460..66b86a4f2 100644
--- a/doc/schemas/decode.schema.json
+++ b/doc/schemas/decode.schema.json
@@ -869,7 +869,7 @@
                     "description": "a channel to the next peer"
                   },
                   "fee_base_msat": {
-                    "type": "u32",
+                    "type": "msat",
                     "description": "the base fee for payments"
                   },
                   "fee_proportional_millionths": {