diff --git a/src/propertyFields/sitePicker/PropertyFieldSitePickerHost.tsx b/src/propertyFields/sitePicker/PropertyFieldSitePickerHost.tsx
index be1d7309..b9c7c475 100644
--- a/src/propertyFields/sitePicker/PropertyFieldSitePickerHost.tsx
+++ b/src/propertyFields/sitePicker/PropertyFieldSitePickerHost.tsx
@@ -90,6 +90,7 @@ export default class PropertyFieldSitePickerHost extends React.Component<IProper
       <div>
         {this.props.label && <Label>{this.props.label}</Label>}
         <SearchBox
+          disabled={this.props.disabled}
           placeholder={strings.SitePickerSearchBoxPlaceholder}
           onChanged={this.async.debounce(this.onSearchFieldChange, this.props.deferredValidationTime)}
         />
diff --git a/src/webparts/propertyControlsTest/PropertyControlsTestWebPart.ts b/src/webparts/propertyControlsTest/PropertyControlsTestWebPart.ts
index a19b9fca..d3cb525f 100644
--- a/src/webparts/propertyControlsTest/PropertyControlsTestWebPart.ts
+++ b/src/webparts/propertyControlsTest/PropertyControlsTestWebPart.ts
@@ -775,7 +775,8 @@ export default class PropertyControlsTestWebPart extends BaseClientSideWebPart<I
                   onPropertyChange: this.onPropertyPaneFieldChanged,
                   properties: this.properties,
                   key: 'sitesFieldId',
-                  trimDuplicates: true
+                  trimDuplicates: true,
+                  disabled: false
                 }),
                 PropertyFieldTeamPicker('teams', {
                   key: 'teamsPicker',