diff --git a/src/libutil/archive.hh b/src/libutil/archive.hh
index c067cd2ad..607ebf8b2 100644
--- a/src/libutil/archive.hh
+++ b/src/libutil/archive.hh
@@ -75,12 +75,6 @@ struct TeeSink : ParseSink
     TeeSource source;
 
     TeeSink(Source & source) : source(source) { }
-
-    void preallocateContents(unsigned long long size) override
-    {
-        source.data->reserve(source.data->size() + size + 1024);
-    };
-
 };
 
 void parseDump(ParseSink & sink, Source & source);