diff --git a/include/curl/header.h b/include/curl/header.h
index 6af29c0c0a..1598c6f113 100644
--- a/include/curl/header.h
+++ b/include/curl/header.h
@@ -24,6 +24,10 @@
  *
  ***************************************************************************/
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 struct curl_header {
   char *name;    /* this might not use the same case */
   char *value;
@@ -63,4 +67,8 @@ CURL_EXTERN struct curl_header *curl_easy_nextheader(CURL *easy,
                                                      int request,
                                                      struct curl_header *prev);
 
+#ifdef __cplusplus
+} /* end of extern "C" */
+#endif
+
 #endif /* CURLINC_HEADER_H */