1 files changed, 2 insertions, 2 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index 503ad7dae..679f9cee7 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -711,13 +711,13 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string Hash,
    else
       Local = true;
    
-   string compExt = Desc.URI.substr(Desc.URI.size()-3);
+   string compExt = flExtension(URI(Desc.URI).Path);
    const char *decompProg;
    if(compExt == "bz2") 
       decompProg = "bzip2";
    else if(compExt == ".gz") 
       decompProg = "gzip";
-   else if(compExt == "ges" || compExt == "ces") // packaGES or sourCES
+   else if(compExt == "")
       decompProg = "copy";
    else {
       _error->Error("Unsupported extension: %s", compExt.c_str());