1 files changed, 3 insertions, 2 deletions
diff --git a/src/dom/io/bufferstream.cpp b/src/dom/io/bufferstream.cpp
index 4664b07e9..6c3956a60 100644
--- a/src/dom/io/bufferstream.cpp
+++ b/src/dom/io/bufferstream.cpp
@@ -146,11 +146,12 @@ void BufferOutputStream::flush()
 /**
  * Writes the specified byte to this output stream.
  */
-void BufferOutputStream::put(XMLCh ch)
+int BufferOutputStream::put(XMLCh ch)
 {
     if (closed)
-        return;
+        return -1;
     buffer.push_back(ch);
+    return 1;
 }