diff --git a/src/lib/warcserializer.ts b/src/lib/warcserializer.ts
index 1ce6914..b8ae227 100644
--- a/src/lib/warcserializer.ts
+++ b/src/lib/warcserializer.ts
@@ -27,6 +27,7 @@ export type WARCSerializerOpts = {
 export abstract class BaseSerializerBuffer {
   abstract write(chunk: Uint8Array): void;
   abstract readAll(): AsyncIterable<Uint8Array>;
+  abstract clear(): void;
 }
 
 // ===========================================================================
@@ -42,6 +43,10 @@ export class SerializerInMemBuffer extends BaseSerializerBuffer {
       yield buff;
     }
   }
+
+  clear() {
+    this.buffers = [];
+  }
 }
 
 // ===========================================================================
diff --git a/src/node/warcserializer.ts b/src/node/warcserializer.ts
index e860671..c00ffb4 100644
--- a/src/node/warcserializer.ts
+++ b/src/node/warcserializer.ts
@@ -75,10 +75,10 @@ export class TempFileBuffer extends warcserializer.SerializerInMemBuffer {
       yield buff;
     }
 
-    await this.deleteTempFile();
+    await this.clear();
   }
 
-  async deleteTempFile() {
+  override async clear() {
     if (this.filename) {
       await unlink(this.filename);
       this.filename = "";