diff --git a/src/XrdFileCache/XrdFileCacheFile.cc b/src/XrdFileCache/XrdFileCacheFile.cc
index ecfb941969e..532a670f10a 100644
--- a/src/XrdFileCache/XrdFileCacheFile.cc
+++ b/src/XrdFileCache/XrdFileCacheFile.cc
@@ -757,6 +757,10 @@ void File::WriteBlockToDisk(Block* b)
       XrdSysCondVarHelper _lck(m_downloadCond);
 
       m_cfi.SetBitWritten(pfIdx);
+
+      if (b->m_prefetch)
+         m_cfi.SetBitPrefetch();
+      
       // clLog()->Dump(XrdCl::AppMsg, "File::WriteToDisk() dec_ref_count %d %s", pfIdx, lPath());
       dec_ref_count(b);
 
@@ -999,4 +1003,4 @@ void DirectResponseHandler::Done(int res)
    {
       m_cond.Signal();
    }
-}
\ No newline at end of file
+}
diff --git a/src/XrdFileCache/XrdFileCacheInfo.hh b/src/XrdFileCache/XrdFileCacheInfo.hh
index 4f3fc138216..bda5a892a0b 100644
--- a/src/XrdFileCache/XrdFileCacheInfo.hh
+++ b/src/XrdFileCache/XrdFileCacheInfo.hh
@@ -261,14 +261,16 @@ inline bool Info::TestBit(int i) const
     return (m_buff_written[cn] & cfiBIT(off)) == cfiBIT(off);
 }
 
-// AMT  could have only one function to test bit and pass an argument, but would loose clarity
+
 inline bool Info::TestPrefetchBit(int i) const
 {
+   if (m_buff_prefetch) return false;
+   
     const int cn = i/8;
     assert(cn < GetSizeInBytes());
 
     const int off = i - cn*8;
-    return (m_buff_written[cn] & cfiBIT(off)) == cfiBIT(off);
+    return (m_buff_prefetch[cn] & cfiBIT(off)) == cfiBIT(off);
 }
 
 inline int Info::GetNDownloadedBlocks() const
@@ -361,4 +363,4 @@ inline long long Info::GetBufferSize() const
 // XrdFileCacheInfoBlock
 //----------------------------------------------------------------
 }
-#endif
\ No newline at end of file
+#endif