diff --git a/src/support/ChangeLog b/src/support/ChangeLog
index d4a67ce456..4e3ac4b2a1 100644
--- a/src/support/ChangeLog
+++ b/src/support/ChangeLog
@@ -1,3 +1,7 @@
+2004-12-14  Angus Leeming  <leeming@lyx.org>
+
+	* copy.C (copy): open the ifstream with ios::binary.
+
 2004-12-14  Angus Leeming  <leeming@lyx.org>
 
 	* os.C: Add _WIN32 to the #define.
diff --git a/src/support/copy.C b/src/support/copy.C
index b89f215949..0d0c32b98b 100644
--- a/src/support/copy.C
+++ b/src/support/copy.C
@@ -11,7 +11,7 @@ using std::ios;
 
 bool lyx::copy(string const & from, string const & to)
 {
-	ifstream ifs(from.c_str());
+	ifstream ifs(from.c_str(), ios::binary);
 	if (!ifs)
 		return false;
 	ofstream ofs(to.c_str(),