diff --git a/hassio/addons/validate.py b/hassio/addons/validate.py
index 06f835b32..61b17779c 100644
--- a/hassio/addons/validate.py
+++ b/hassio/addons/validate.py
@@ -479,9 +479,9 @@ def _single_ui_option(
     """Validate a single element."""
     ui_node = {"name": key}
 
-    # If multible
+    # If multiple
     if multiple:
-        ui_node["mutliple"] = True
+        ui_node["multiple"] = True
 
     # Parse extend data from type
     match = RE_SCHEMA_ELEMENT.match(value)
diff --git a/tests/addons/test_ui_schema.py b/tests/addons/test_ui_schema.py
index 9672a0d7b..bc73050d2 100644
--- a/tests/addons/test_ui_schema.py
+++ b/tests/addons/test_ui_schema.py
@@ -36,7 +36,7 @@ def test_group_schema():
             "optional": True,
             "schema": [
                 {"name": "name", "required": True, "type": "string"},
-                {"mutliple": True, "name": "data", "required": True, "type": "string"},
+                {"multiple": True, "name": "data", "required": True, "type": "string"},
                 {"name": "path", "optional": True, "type": "string"},
             ],
             "type": "schema",
@@ -65,7 +65,7 @@ def test_group_list():
             "optional": True,
             "schema": [
                 {"name": "name", "required": True, "type": "string"},
-                {"mutliple": True, "name": "data", "optional": True, "type": "string"},
+                {"multiple": True, "name": "data", "optional": True, "type": "string"},
                 {"name": "path", "optional": True, "type": "string"},
             ],
             "type": "schema",