diff --git a/src/panels/lovelace/entity-rows/hui-input-select-entity-row.ts b/src/panels/lovelace/entity-rows/hui-input-select-entity-row.ts
index 931117bc58..896c8c4113 100644
--- a/src/panels/lovelace/entity-rows/hui-input-select-entity-row.ts
+++ b/src/panels/lovelace/entity-rows/hui-input-select-entity-row.ts
@@ -4,7 +4,7 @@ import { customElement, property, state } from "lit/decorators";
 import { stopPropagation } from "../../../common/dom/stop_propagation";
 import { computeStateName } from "../../../common/entity/compute_state_name";
 import "../../../components/ha-select";
-import { UNAVAILABLE_STATES } from "../../../data/entity";
+import { UNAVAILABLE } from "../../../data/entity";
 import { forwardHaptic } from "../../../data/haptics";
 import {
   InputSelectEntity,
@@ -61,7 +61,9 @@ class HuiInputSelectEntityRow extends LitElement implements LovelaceRow {
         <ha-select
           .label=${this._config.name || computeStateName(stateObj)}
           .value=${stateObj.state}
-          .disabled=${UNAVAILABLE_STATES.includes(stateObj.state)}
+          .disabled=${
+            stateObj.state === UNAVAILABLE /* UNKNWON state is allowed */
+          }
           naturalMenuWidth
           @selected=${this._selectedChanged}
           @click=${stopPropagation}
diff --git a/src/state-summary/state-card-input_select.ts b/src/state-summary/state-card-input_select.ts
index e249ae1319..2472eac01e 100644
--- a/src/state-summary/state-card-input_select.ts
+++ b/src/state-summary/state-card-input_select.ts
@@ -5,7 +5,7 @@ import { customElement, property } from "lit/decorators";
 import { stopPropagation } from "../common/dom/stop_propagation";
 import { computeStateName } from "../common/entity/compute_state_name";
 import "../components/entity/state-badge";
-import { UNAVAILABLE_STATES } from "../data/entity";
+import { UNAVAILABLE } from "../data/entity";
 import { InputSelectEntity, setInputSelectOption } from "../data/input_select";
 import type { HomeAssistant } from "../types";
 
@@ -21,7 +21,9 @@ class StateCardInputSelect extends LitElement {
       <ha-select
         .label=${computeStateName(this.stateObj)}
         .value=${this.stateObj.state}
-        .disabled=${UNAVAILABLE_STATES.includes(this.stateObj.state)}
+        .disabled=${
+          this.stateObj.state === UNAVAILABLE /* UNKNWON state is allowed */
+        }
         naturalMenuWidth
         fixedMenuPosition
         @selected=${this._selectedOptionChanged}