diff --git a/homeassistant/components/homekit/util.py b/homeassistant/components/homekit/util.py
index ae7e35030be..8fc2a039304 100644
--- a/homeassistant/components/homekit/util.py
+++ b/homeassistant/components/homekit/util.py
@@ -114,7 +114,7 @@ _LOGGER = logging.getLogger(__name__)
 
 NUMBERS_ONLY_RE = re.compile(r"[^\d.]+")
 VERSION_RE = re.compile(r"([0-9]+)(\.[0-9]+)?(\.[0-9]+)?")
-INVALID_END_CHARS = "-_"
+INVALID_END_CHARS = "-_ "
 MAX_VERSION_PART = 2**32 - 1
 
 
diff --git a/tests/components/homekit/test_accessories.py b/tests/components/homekit/test_accessories.py
index c37cac84b8a..00cf42bb916 100644
--- a/tests/components/homekit/test_accessories.py
+++ b/tests/components/homekit/test_accessories.py
@@ -121,7 +121,7 @@ async def test_home_accessory(hass: HomeAssistant, hk_driver) -> None:
     serv = acc3.services[0]  # SERV_ACCESSORY_INFO
     assert (
         serv.get_characteristic(CHAR_NAME).value
-        == "Home Accessory that exceeds the maximum maximum maximum maximum "
+        == "Home Accessory that exceeds the maximum maximum maximum maximum"
     )
     assert (
         serv.get_characteristic(CHAR_MANUFACTURER).value
@@ -154,7 +154,7 @@ async def test_home_accessory(hass: HomeAssistant, hk_driver) -> None:
     serv = acc4.services[0]  # SERV_ACCESSORY_INFO
     assert (
         serv.get_characteristic(CHAR_NAME).value
-        == "Home Accessory that exceeds the maximum maximum maximum maximum "
+        == "Home Accessory that exceeds the maximum maximum maximum maximum"
     )
     assert (
         serv.get_characteristic(CHAR_MANUFACTURER).value
diff --git a/tests/components/homekit/test_util.py b/tests/components/homekit/test_util.py
index 7f7e3ee0ce0..20e536baf81 100644
--- a/tests/components/homekit/test_util.py
+++ b/tests/components/homekit/test_util.py
@@ -256,6 +256,7 @@ def test_cleanup_name_for_homekit() -> None:
     """Ensure name sanitize works as expected."""
 
     assert cleanup_name_for_homekit("abc") == "abc"
+    assert cleanup_name_for_homekit("abc ") == "abc"
     assert cleanup_name_for_homekit("a b c") == "a b c"
     assert cleanup_name_for_homekit("ab_c") == "ab c"
     assert (