diff --git a/src/actions.ts b/src/actions.ts
index 31e7a4fe..85e89dd7 100644
--- a/src/actions.ts
+++ b/src/actions.ts
@@ -1,4 +1,7 @@
-import { getInput, setOutput } from "@actions/core";
+import {
+  getInput,
+  setOutput,
+} from "@actions/core";
 
 import { format } from "./dotnet";
 
diff --git a/src/dotnet.ts b/src/dotnet.ts
index 49557600..bba24f57 100644
--- a/src/dotnet.ts
+++ b/src/dotnet.ts
@@ -1,4 +1,8 @@
-import { debug, info, warning } from "@actions/core";
+import {
+  debug,
+  info,
+  warning,
+} from "@actions/core";
 import { exec } from "@actions/exec";
 import { context } from "@actions/github";
 import { which } from "@actions/io";
@@ -27,9 +31,7 @@ function formatOnlyChangedFiles(onlyChangedFiles: boolean): boolean {
 }
 
 export async function format(options: FormatOptions): Promise<boolean> {
-  const execOptions: ExecOptions = {
-    ignoreReturnCode: true,
-  };
+  const execOptions: ExecOptions = { ignoreReturnCode: true };
 
   const dotnetFormatOptions = ["format", "--check"];
 
diff --git a/src/files.ts b/src/files.ts
index 0008e744..aa0fb30d 100644
--- a/src/files.ts
+++ b/src/files.ts
@@ -1,33 +1,36 @@
 import { extname } from "path";
 
 import { getInput } from "@actions/core";
-import { context, getOctokit } from "@actions/github";
+import {
+  context,
+  getOctokit,
+} from "@actions/github";
 
-enum fileStatus {
+enum FileStatus {
   /**
    * The file was added.
    */
-  added = "added",
+  Added = "added",
 
   /**
    * The mode of the file was changed or there are unknown changes because the diff was truncated.
    */
-  changed = "changed",
+  Changed = "changed",
 
   /**
    * The content of the file was modified.
    */
-  modified = "modified",
+  Modified = "modified",
 
   /**
    * The file was removed.
    */
-  removed = "removed",
+  Removed = "removed",
 
   /**
    * The file was renamed.
    */
-  renamed = "renamed",
+  Renamed = "renamed",
 }
 
 const fileTypes = [
@@ -49,7 +52,7 @@ export async function getPullRequestFiles(): Promise<string[]> {
   });
 
   return files
-    .filter(file => file.status !== fileStatus.removed)
-    .filter(file => fileTypes.includes(extname(file.filename)))
-    .map(file => file.filename);
+    .filter((file) => file.status !== FileStatus.Removed)
+    .filter((file) => fileTypes.includes(extname(file.filename)))
+    .map((file) => file.filename);
 }
diff --git a/src/main.ts b/src/main.ts
index 1e6e2d5e..fbe1433b 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,6 +1,12 @@
-import { getInput, setFailed } from "@actions/core";
+import {
+  getInput,
+  setFailed,
+} from "@actions/core";
 
-import { check, fix } from "./actions";
+import {
+  check,
+  fix,
+} from "./actions";
 
 export async function run(): Promise<void> {
   try {
@@ -19,9 +25,12 @@ export async function run(): Promise<void> {
         throw Error(`Unsupported action "${action}"`);
     }
   } catch (error) {
-    setFailed(error.message);
-    throw error;
+    if (error instanceof Error) {
+      setFailed(error.message);
+    } else {
+      throw error;
+    }
   }
 }
 
-run();
+void run();