diff --git a/src/home/JoinExistingCallModal.tsx b/src/home/JoinExistingCallModal.tsx
index 02d7cd2a..078d317f 100644
--- a/src/home/JoinExistingCallModal.tsx
+++ b/src/home/JoinExistingCallModal.tsx
@@ -43,7 +43,9 @@ export function JoinExistingCallModal({ onJoin, onClose, ...rest }: Props) {
         <p>{t("This call already exists, would you like to join?")}</p>
         <FieldRow rightAlign className={styles.buttons}>
           <Button onPress={onClose}>{t("No")}</Button>
-          <Button onPress={onJoin} data-testid="home_joinExistingRoom">{t("Yes, join call")}</Button>
+          <Button onPress={onJoin} data-testid="home_joinExistingRoom">
+            {t("Yes, join call")}
+          </Button>
         </FieldRow>
       </ModalContent>
     </Modal>
diff --git a/src/home/UnauthenticatedView.tsx b/src/home/UnauthenticatedView.tsx
index be20d702..4d4f5ced 100644
--- a/src/home/UnauthenticatedView.tsx
+++ b/src/home/UnauthenticatedView.tsx
@@ -173,7 +173,12 @@ export const UnauthenticatedView: FC = () => {
                 <ErrorMessage error={error} />
               </FieldRow>
             )}
-            <Button type="submit" size="lg" disabled={loading} data-testid="home_go">
+            <Button
+              type="submit"
+              size="lg"
+              disabled={loading}
+              data-testid="home_go"
+            >
               {loading ? t("Loading…") : t("Go")}
             </Button>
             <div id={recaptchaId} />
diff --git a/src/room/VideoPreview.tsx b/src/room/VideoPreview.tsx
index 6325bda0..aaf9df58 100644
--- a/src/room/VideoPreview.tsx
+++ b/src/room/VideoPreview.tsx
@@ -64,7 +64,13 @@ export function VideoPreview({
 
   return (
     <div className={styles.preview} ref={previewRef}>
-      <video ref={videoRef} muted playsInline disablePictureInPicture data-testid="preview_video" />
+      <video
+        ref={videoRef}
+        muted
+        playsInline
+        disablePictureInPicture
+        data-testid="preview_video"
+      />
       {state === GroupCallState.LocalCallFeedUninitialized && (
         <Body fontWeight="semiBold" className={styles.cameraPermissions}>
           {t("Camera/microphone permissions needed to join the call.")}
diff --git a/src/video-grid/VideoTile.tsx b/src/video-grid/VideoTile.tsx
index 804a0362..e3d26ad3 100644
--- a/src/video-grid/VideoTile.tsx
+++ b/src/video-grid/VideoTile.tsx
@@ -154,7 +154,7 @@ export const VideoTile = forwardRef<HTMLElement, Props>(
           "--tileHeight": height?.to((h) => `${h}px`),
         }}
         ref={ref as ForwardedRef<HTMLDivElement>}
-        data-testid='videoTile'
+        data-testid="videoTile"
         {...rest}
       >
         {toolbarButtons.length > 0 && !maximised && (
@@ -181,10 +181,17 @@ export const VideoTile = forwardRef<HTMLElement, Props>(
                 audioMuted && !videoMuted && !speaking && <MicMutedIcon />
               }
               {videoMuted && <VideoMutedIcon />}
-              <span data-testid="videoTile_caption" title={caption}>{caption}</span>
+              <span data-testid="videoTile_caption" title={caption}>
+                {caption}
+              </span>
             </div>
           ))}
-        <video data-testid="videoTile_video" ref={mediaRef} playsInline disablePictureInPicture />
+        <video
+          data-testid="videoTile_video"
+          ref={mediaRef}
+          playsInline
+          disablePictureInPicture
+        />
       </animated.div>
     );
   }
