diff --git a/crates/propolis-api-types/src/instance_spec/v0/mod.rs b/crates/propolis-api-types/src/instance_spec/v0/mod.rs
index 086b989ec..03cab5db8 100644
--- a/crates/propolis-api-types/src/instance_spec/v0/mod.rs
+++ b/crates/propolis-api-types/src/instance_spec/v0/mod.rs
@@ -114,17 +114,17 @@ pub struct DeviceSpecV0 {
     pub serial_ports: HashMap<SpecKey, components::devices::SerialPort>,
     pub pci_pci_bridges: HashMap<SpecKey, components::devices::PciPciBridge>,
 
-    /// This field has a default value (`None`) to allow for
-    /// backwards-compatibility when upgrading from a Propolis
-    /// version that does not support this device. If the pvpanic device was not
-    /// present in the spec being deserialized, a `None` will be produced,
-    /// rather than rejecting the spec.
+    // This field has a default value (`None`) to allow for
+    // backwards-compatibility when upgrading from a Propolis
+    // version that does not support this device. If the pvpanic device was not
+    // present in the spec being deserialized, a `None` will be produced,
+    // rather than rejecting the spec.
     #[serde(default)]
-    /// Skip serializing this field if it is `None`. This is so that Propolis
-    /// versions with support for this device are backwards-compatible with
-    /// older versions that don't, as long as the spec doesn't define a pvpanic
-    /// device --- if there is no panic device, skipping the field from the spec
-    /// means that the older version will still accept the spec.
+    // Skip serializing this field if it is `None`. This is so that Propolis
+    // versions with support for this device are backwards-compatible with
+    // older versions that don't, as long as the spec doesn't define a pvpanic
+    // device --- if there is no panic device, skipping the field from the spec
+    // means that the older version will still accept the spec.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub qemu_pvpanic: Option<components::devices::QemuPvpanic>,
 
diff --git a/openapi/propolis-server.json b/openapi/propolis-server.json
index 154be4893..80b4fc61c 100644
--- a/openapi/propolis-server.json
+++ b/openapi/propolis-server.json
@@ -625,7 +625,6 @@
           },
           "qemu_pvpanic": {
             "nullable": true,
-            "description": "This field has a default value (`None`) to allow for backwards-compatibility when upgrading from a Propolis version that does not support this device. If the pvpanic device was not present in the spec being deserialized, a `None` will be produced, rather than rejecting the spec. Skip serializing this field if it is `None`. This is so that Propolis versions with support for this device are backwards-compatible with older versions that don't, as long as the spec doesn't define a pvpanic device --- if there is no panic device, skipping the field from the spec means that the older version will still accept the spec.",
             "allOf": [
               {
                 "$ref": "#/components/schemas/QemuPvpanic"