diff --git a/lib/gssapi/gssapi/gssapi.h b/lib/gssapi/gssapi/gssapi.h
index caa1af8b3..94365d9f0 100644
--- a/lib/gssapi/gssapi/gssapi.h
+++ b/lib/gssapi/gssapi/gssapi.h
@@ -890,13 +890,13 @@ GSSAPI_DEPRECATED GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL gss_unseal
  */
 
 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
-gss_encapsulate_token(const gss_buffer_t /* input_token */,
-		      const gss_OID /* oid */,
+gss_encapsulate_token(gss_const_buffer_t /* input_token */,
+		      gss_const_OID /* oid */,
 		      gss_buffer_t /* output_token */);
 
 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
-gss_decapsulate_token(const gss_buffer_t /* input_token */,
-		      const gss_OID /* oid */,
+gss_decapsulate_token(gss_const_buffer_t /* input_token */,
+		      gss_const_OID /* oid */,
 		      gss_buffer_t /* output_token */);
 
 
diff --git a/lib/gssapi/mech/gss_decapsulate_token.c b/lib/gssapi/mech/gss_decapsulate_token.c
index 0fe3b4f5a..e4bb31738 100644
--- a/lib/gssapi/mech/gss_decapsulate_token.c
+++ b/lib/gssapi/mech/gss_decapsulate_token.c
@@ -34,8 +34,8 @@
 #include "mech_locl.h"
 
 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
-gss_decapsulate_token(const gss_buffer_t input_token,
-		      const gss_OID oid,
+gss_decapsulate_token(gss_const_buffer_t input_token,
+		      gss_const_OID oid,
 		      gss_buffer_t output_token)
 {
     GSSAPIContextToken ct;
diff --git a/lib/gssapi/mech/gss_encapsulate_token.c b/lib/gssapi/mech/gss_encapsulate_token.c
index fc0ec736b..394b355d5 100644
--- a/lib/gssapi/mech/gss_encapsulate_token.c
+++ b/lib/gssapi/mech/gss_encapsulate_token.c
@@ -34,8 +34,8 @@
 #include "mech_locl.h"
 
 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
-gss_encapsulate_token(const gss_buffer_t input_token,
-		      const gss_OID oid,
+gss_encapsulate_token(gss_const_buffer_t input_token,
+		      gss_const_OID oid,
 		      gss_buffer_t output_token)
 {
     GSSAPIContextToken ct;