diff --git a/packages/puppeteer-core/src/bidi/Serializer.ts b/packages/puppeteer-core/src/bidi/Serializer.ts
index 523380782b8..650530ca894 100644
--- a/packages/puppeteer-core/src/bidi/Serializer.ts
+++ b/packages/puppeteer-core/src/bidi/Serializer.ts
@@ -120,7 +120,7 @@ export class BidiSerializer {
     }
 
     throw new UnserializableError(
-      'Custom object sterilization not possible. Use plain objects instead.'
+      'Custom object serialization not possible. Use plain objects instead.'
     );
   }
 }