diff --git a/include/sigar.h b/include/sigar.h
index 2245d46e..e80b9469 100644
--- a/include/sigar.h
+++ b/include/sigar.h
@@ -549,9 +549,6 @@ SIGAR_DECLARE(int) sigar_disk_usage_get(sigar_t *sigar,
                                         const char *name,
                                         sigar_disk_usage_t *disk);
 
-SIGAR_DECLARE(int)
-sigar_file_system_ping(sigar_t *sigar,
-                       sigar_file_system_t *fs);
 
 typedef struct {
     enum {
@@ -968,13 +965,6 @@ SIGAR_DECLARE(int) sigar_sys_info_get(sigar_t *sigar, sigar_sys_info_t *sysinfo)
 
 SIGAR_DECLARE(int) sigar_fqdn_get(sigar_t *sigar, char *name, int namelen);
 
-SIGAR_DECLARE(int) sigar_rpc_ping(char *hostname,
-                                  int protocol,
-                                  unsigned long program,
-                                  unsigned long version);
-
-SIGAR_DECLARE(char *) sigar_rpc_strerror(int err);
-
 SIGAR_DECLARE(char *) sigar_password_get(const char *prompt);
 
 #ifdef __cplusplus