diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5c3f9fd64..f2b14f6043 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,10 @@ it according to semantic versioning. For example, if your PR adds a breaking cha
 should change the heading of the (upcoming) version to include a major version bump.
 
 -->
+# 5.12.2
+
+- Fixed a faulty check of the `isMultiple` option in `MultiSchemaField` fixing the select element. It no longer offers multiple choice in a `oneOf` case in Chakra UI
+
 # 5.12.1
 
 ## @rjsf/validator-ajv8
diff --git a/packages/chakra-ui/src/SelectWidget/SelectWidget.tsx b/packages/chakra-ui/src/SelectWidget/SelectWidget.tsx
index 234a22cf2e..3d347796e5 100644
--- a/packages/chakra-ui/src/SelectWidget/SelectWidget.tsx
+++ b/packages/chakra-ui/src/SelectWidget/SelectWidget.tsx
@@ -73,7 +73,7 @@ export default function SelectWidget<T = any, S extends StrictRJSFSchema = RJSFS
       })
     : [];
 
-  const isMultiple = typeof multiple !== 'undefined' && Boolean(enumOptions);
+  const isMultiple = typeof multiple !== 'undefined' && multiple !== false && Boolean(enumOptions);
   const selectedIndex = enumOptionsIndexForValue<S>(value, enumOptions, isMultiple);
   const formValue: any = isMultiple
     ? ((selectedIndex as string[]) || []).map((i: string) => {