diff --git a/include/cantera/clib/ctbdry.h b/include/cantera/clib/ctbdry.h
deleted file mode 100644
index 072abe25a..000000000
--- a/include/cantera/clib/ctbdry.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/**
- * @file ctbdry.h
- */
-
-// This file is part of Cantera. See License.txt in the top-level directory or
-// at http://www.cantera.org/license.txt for license and copyright information.
-
-#ifndef CTC_BDRY_H
-#define CTC_BDRY_H
-
-#include "clib_defs.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-    CANTERA_CAPI int bndry_new(int itype);
-    CANTERA_CAPI int bndry_del(int i);
-    CANTERA_CAPI double bndry_temperature(int i);
-    CANTERA_CAPI int bndry_settemperature(int i, double t);
-    CANTERA_CAPI double bndry_spreadrate(int i);
-    CANTERA_CAPI int bndry_setSpreadRate(int i, double v);
-    CANTERA_CAPI int bndry_setmdot(int i, double mdot);
-    CANTERA_CAPI double bndry_mdot(int i);
-    CANTERA_CAPI int bndry_setxin(int i, double* xin);
-    CANTERA_CAPI int bndry_setxinbyname(int i, char* xin);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif