diff --git a/nshlib/nsh.h b/nshlib/nsh.h
index bac0c7929..e2659310c 100644
--- a/nshlib/nsh.h
+++ b/nshlib/nsh.h
@@ -799,6 +799,11 @@ extern const char g_fmtsignalrecvd[];
  * Public Function Prototypes
  ****************************************************************************/
 
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
 /* Initialization */
 
 #ifdef CONFIG_NSH_ROMFSETC
@@ -1403,4 +1408,8 @@ int nsh_foreach_var(FAR struct nsh_vtbl_s *vtbl, nsh_foreach_var_t cb,
                     FAR void *arg);
 #endif
 
+#if defined(__cplusplus)
+}
+#endif
+
 #endif /* __APPS_NSHLIB_NSH_H */