diff --git a/headers/os/storage/File.h b/headers/os/storage/File.h
index f9c7f187bd..8dcfd94482 100644
--- a/headers/os/storage/File.h
+++ b/headers/os/storage/File.h
@@ -72,6 +72,7 @@ private:
 
 private:
 	int get_fd() const;
+	virtual void close_fd();
 
 private:
 	//! The file's open mode.
diff --git a/src/kits/storage/File.cpp b/src/kits/storage/File.cpp
index d3961bed84..3e82604cf1 100644
--- a/src/kits/storage/File.cpp
+++ b/src/kits/storage/File.cpp
@@ -507,6 +507,15 @@ BFile::get_fd() const
 	return fFd;
 }
 
+// close_fd
+/*!	Overrides BNode::close_fd() solely for R5 binary compatibility.
+*/
+void
+BFile::close_fd()
+{
+	BNode::close_fd();
+}
+
 
 #ifdef USE_OPENBEOS_NAMESPACE
 };		// namespace OpenBeOS