diff --git a/src/nwdft/xc/2ndDerivB97.h b/src/nwdft/xc/2ndDerivB97.h
index bd1f9ad59e..d96bbc7726 100644
--- a/src/nwdft/xc/2ndDerivB97.h
+++ b/src/nwdft/xc/2ndDerivB97.h
@@ -1,3 +1,6 @@
+#if 0
+/* $Id$ */
+#endif
 
 #define _FCLDA_ELEMENTS 9
 #define _FXC_NUMDERI 36