diff --git a/indexer_JPIP/jpip.h b/indexer_JPIP/jpip.h
index f8e16582..84df3554 100644
--- a/indexer_JPIP/jpip.h
+++ b/indexer_JPIP/jpip.h
@@ -25,13 +25,18 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef __JPIP_H
+#define __JPIP_H
+
 #include "j2k.h"
 
 // Codestream index box (superbox)
-int jpip_write_cidx(int offset, info_image_t img, j2k_cp_t *j2k_cp);
+int jpip_write_cidx(int offset, info_image_t img, j2k_cp_t *j2k_cp, int version);
 
 // Index Finder Box
 void jpip_write_iptr(int offset, int length);
 
 // File Index Box
 int jpip_write_fidx(int offset_jp2c, int length_jp2c, int offset_idx, int length_idx);
+
+#endif