diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js
index 367675b92f31f2..4457f56a8d8215 100644
--- a/lib/internal/util/inspect.js
+++ b/lib/internal/util/inspect.js
@@ -1215,7 +1215,7 @@ function getStackFrames(ctx, err, stack) {
   const frames = stack.split('\n');
 
   // Remove stack frames identical to frames in cause.
-  if (err.cause) {
+  if (err.cause && isError(err.cause)) {
     const causeStack = getStackString(err.cause);
     const causeStackStart = causeStack.indexOf('\n    at');
     if (causeStackStart !== -1) {
diff --git a/test/message/util-inspect-error-cause.js b/test/message/util-inspect-error-cause.js
index f6318357974cb6..4f22a34056cf4d 100644
--- a/test/message/util-inspect-error-cause.js
+++ b/test/message/util-inspect-error-cause.js
@@ -13,6 +13,19 @@ const cause2 = new FoobarError('Individual message', { cause: cause1 });
 cause2.extraProperties = 'Yes!';
 const cause3 = new Error('Stack causes', { cause: cause2 });
 
+const cause4 = new Error('Number error cause', { cause: 42 });
+const cause5 = new Error('Object cause', {
+  cause: {
+    message: 'Unique',
+    name: 'Error',
+    stack: 'Error: Unique\n' +
+           '    at Module._compile (node:internal/modules/cjs/loader:827:30)'
+  }
+});
+
+console.log(cause4);
+console.log(cause5);
+
 process.nextTick(() => {
   const error = new RangeError('New Stack Frames', { cause: cause2 });
   const error2 = new RangeError('New Stack Frames', { cause: cause3 });
diff --git a/test/message/util-inspect-error-cause.out b/test/message/util-inspect-error-cause.out
index bd8673ae25c031..a34ca5b46c8d47 100644
--- a/test/message/util-inspect-error-cause.out
+++ b/test/message/util-inspect-error-cause.out
@@ -1,3 +1,28 @@
+Error: Number error cause
+    at *
+    at *
+    at *
+    at *
+    at *
+    at *
+    at * {
+  [cause]: 42
+}
+Error: Object cause
+    at *
+    at *
+    at *
+    at *
+    at *
+    at *
+    at * {
+  [cause]: {
+    message: 'Unique',
+    name: 'Error',
+    stack: 'Error: Unique\n' +
+      '    at Module._compile (node:internal/modules/cjs/loader:827:30)'
+  }
+}
 RangeError: New Stack Frames
     at *
 *[90m    at *[39m {