diff --git a/web/src/blueslip.ts b/web/src/blueslip.ts
index c1cf398889..899ff1489e 100644
--- a/web/src/blueslip.ts
+++ b/web/src/blueslip.ts
@@ -86,11 +86,7 @@ export function warn(msg: string, more_info?: unknown): void {
     }
 }
 
-export function error(
-    msg: string,
-    more_info?: object | undefined,
-    original_error?: unknown | undefined,
-): void {
+export function error(msg: string, more_info?: object | undefined, original_error?: unknown): void {
     // Log the Sentry error before the console warning, so we don't
     // end up with a doubled message in the Sentry logs.
     Sentry.setContext("more_info", more_info === undefined ? null : more_info);
diff --git a/web/src/blueslip_stacktrace.ts b/web/src/blueslip_stacktrace.ts
index 1767ea6346..38bdea376f 100644
--- a/web/src/blueslip_stacktrace.ts
+++ b/web/src/blueslip_stacktrace.ts
@@ -8,7 +8,7 @@ import render_blueslip_stacktrace from "../templates/blueslip_stacktrace.hbs";
 export class BlueslipError extends Error {
     override name = "BlueslipError";
     more_info?: object;
-    constructor(msg: string, more_info?: object | undefined, cause?: unknown | undefined) {
+    constructor(msg: string, more_info?: object | undefined, cause?: unknown) {
         super(msg, {cause});
         if (more_info !== undefined) {
             this.more_info = more_info;