diff --git a/reactos/lib/libwine/debug.c b/reactos/lib/libwine/debug.c
index 8862862fcfe..a72838eb114 100644
--- a/reactos/lib/libwine/debug.c
+++ b/reactos/lib/libwine/debug.c
@@ -222,3 +222,8 @@ const char *wine_dbg_sprintf( const char *format, ... )
 
     return buffer;
 }
+
+const char *wine_dbgstr_w( const WCHAR *s )
+{
+    return wine_dbgstr_wn( s, -1 );
+}