diff --git a/homeassistant/components/generic/camera.py b/homeassistant/components/generic/camera.py
index b6084d148a3..b4aaad38618 100644
--- a/homeassistant/components/generic/camera.py
+++ b/homeassistant/components/generic/camera.py
@@ -96,7 +96,7 @@ class GenericCamera(Camera):
         if self._stream_source is not None:
             self._stream_source.hass = hass
         self._limit_refetch = device_info[CONF_LIMIT_REFETCH_TO_URL_CHANGE]
-        self._attr_frames_interval = 1 / device_info[CONF_FRAMERATE]
+        self._attr_frame_interval = 1 / device_info[CONF_FRAMERATE]
         self._supported_features = SUPPORT_STREAM if self._stream_source else 0
         self.content_type = device_info[CONF_CONTENT_TYPE]
         self.verify_ssl = device_info[CONF_VERIFY_SSL]
diff --git a/tests/components/generic/test_camera.py b/tests/components/generic/test_camera.py
index 60e68a1e7b1..042cd2ee650 100644
--- a/tests/components/generic/test_camera.py
+++ b/tests/components/generic/test_camera.py
@@ -9,6 +9,7 @@ import pytest
 import respx
 
 from homeassistant import config as hass_config
+from homeassistant.components.camera import async_get_mjpeg_stream
 from homeassistant.components.generic import DOMAIN
 from homeassistant.components.websocket_api.const import TYPE_RESULT
 from homeassistant.const import SERVICE_RELOAD
@@ -515,3 +516,29 @@ async def test_no_still_image_url(hass, hass_client):
         mock_stream.async_get_image.assert_called_once()
         assert resp.status == HTTPStatus.OK
         assert await resp.read() == b"stream_keyframe_image"
+
+
+async def test_frame_interval_property(hass):
+    """Test that the frame interval is calculated and returned correctly."""
+
+    await async_setup_component(
+        hass,
+        "camera",
+        {
+            "camera": {
+                "name": "config_test",
+                "platform": "generic",
+                "stream_source": "rtsp://example.com:554/rtsp/",
+                "framerate": 5,
+            },
+        },
+    )
+    await hass.async_block_till_done()
+
+    request = Mock()
+    with patch(
+        "homeassistant.components.camera.async_get_still_stream"
+    ) as mock_get_stream:
+        await async_get_mjpeg_stream(hass, request, "camera.config_test")
+
+    assert mock_get_stream.call_args_list[0][0][3] == pytest.approx(0.2)