diff --git a/packages/next/src/client/components/is-next-router-error.ts b/packages/next/src/client/components/is-next-router-error.ts
index 11ed739582028..db3dc2330b707 100644
--- a/packages/next/src/client/components/is-next-router-error.ts
+++ b/packages/next/src/client/components/is-next-router-error.ts
@@ -1,8 +1,11 @@
 import { isNotFoundError } from './not-found'
 import { isRedirectError } from './redirect'
 
+/**
+ * Returns true if the error is a navigation signal error. These errors are
+ * thrown by user code to perform navigation operations and interrupt the React
+ * render.
+ */
 export function isNextRouterError(error: any): boolean {
-  return (
-    error && error.digest && (isRedirectError(error) || isNotFoundError(error))
-  )
+  return isRedirectError(error) || isNotFoundError(error)
 }
diff --git a/packages/next/src/export/helpers/is-dynamic-usage-error.ts b/packages/next/src/export/helpers/is-dynamic-usage-error.ts
index 32ba973d83777..d6df2454094af 100644
--- a/packages/next/src/export/helpers/is-dynamic-usage-error.ts
+++ b/packages/next/src/export/helpers/is-dynamic-usage-error.ts
@@ -1,8 +1,8 @@
 import { isDynamicServerError } from '../../client/components/hooks-server-context'
 import { isBailoutToCSRError } from '../../shared/lib/lazy-dynamic/bailout-to-csr'
-import { isNavigationSignalError } from './is-navigation-signal-error'
+import { isNextRouterError } from '../../client/components/is-next-router-error'
 
 export const isDynamicUsageError = (err: unknown) =>
   isDynamicServerError(err) ||
   isBailoutToCSRError(err) ||
-  isNavigationSignalError(err)
+  isNextRouterError(err)
diff --git a/packages/next/src/export/helpers/is-navigation-signal-error.ts b/packages/next/src/export/helpers/is-navigation-signal-error.ts
deleted file mode 100644
index 27890cd5c7b26..0000000000000
--- a/packages/next/src/export/helpers/is-navigation-signal-error.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import { isNotFoundError } from '../../client/components/not-found'
-import { isRedirectError } from '../../client/components/redirect'
-
-/**
- * Returns true if the error is a navigation signal error. These errors are
- * thrown by user code to perform navigation operations and interrupt the React
- * render.
- */
-export const isNavigationSignalError = (err: unknown) =>
-  isNotFoundError(err) || isRedirectError(err)
diff --git a/packages/next/src/server/app-render/create-error-handler.tsx b/packages/next/src/server/app-render/create-error-handler.tsx
index 6578ea4525947..ecde9da6390e6 100644
--- a/packages/next/src/server/app-render/create-error-handler.tsx
+++ b/packages/next/src/server/app-render/create-error-handler.tsx
@@ -3,8 +3,8 @@ import { formatServerError } from '../../lib/format-server-error'
 import { SpanStatusCode, getTracer } from '../lib/trace/tracer'
 import { isAbortError } from '../pipe-readable'
 import { isBailoutToCSRError } from '../../shared/lib/lazy-dynamic/bailout-to-csr'
-import { isNavigationSignalError } from '../../export/helpers/is-navigation-signal-error'
 import { isDynamicServerError } from '../../client/components/hooks-server-context'
+import { isNextRouterError } from '../../client/components/is-next-router-error'
 
 declare global {
   var __next_log_error__: undefined | ((err: unknown) => void)
@@ -66,7 +66,7 @@ export function createErrorHandler({
     if (isBailoutToCSRError(err)) return err.digest
 
     // If this is a navigation error, we don't need to log the error.
-    if (isNavigationSignalError(err)) return err.digest
+    if (isNextRouterError(err)) return err.digest
 
     if (!digestErrorsMap.has(digest)) {
       digestErrorsMap.set(digest, err)