diff --git a/homeassistant/components/homeassistant/strings.json b/homeassistant/components/homeassistant/strings.json
index d46a2e50bfd..09b2f17c947 100644
--- a/homeassistant/components/homeassistant/strings.json
+++ b/homeassistant/components/homeassistant/strings.json
@@ -192,7 +192,7 @@
     "service_not_found": {
       "message": "Service {domain}.{service} not found."
     },
-    "service_does_not_supports_reponse": {
+    "service_does_not_support_response": {
       "message": "A service which does not return responses can't be called with {return_response}."
     },
     "service_lacks_response_request": {
diff --git a/homeassistant/core.py b/homeassistant/core.py
index 919e0adb758..8471d2c4dcc 100644
--- a/homeassistant/core.py
+++ b/homeassistant/core.py
@@ -2589,7 +2589,7 @@ class ServiceRegistry:
             if handler.supports_response is SupportsResponse.NONE:
                 raise ServiceValidationError(
                     translation_domain=DOMAIN,
-                    translation_key="service_does_not_supports_reponse",
+                    translation_key="service_does_not_support_response",
                     translation_placeholders={
                         "return_response": "return_response=True"
                     },
diff --git a/tests/test_core.py b/tests/test_core.py
index 8f0d7f53277..ce71fcd42e5 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -1803,9 +1803,9 @@ async def test_services_call_return_response_requires_blocking(
             blocking=False,
             return_response=True,
         )
-    assert (
-        str(exc.value)
-        == "A non blocking service call with argument blocking=False can't be used together with argument return_response=True"
+    assert str(exc.value) == (
+        "A non blocking service call with argument blocking=False "
+        "can't be used together with argument return_response=True"
     )