Index: src/bin/jp2/convert.c
--- src/bin/jp2/convert.c.orig	2014-04-29 14:58:10.000000000 +0200
+++ src/bin/jp2/convert.c	2018-11-04 16:03:05.226144000 +0100
@@ -43,12 +43,12 @@
 #include <ctype.h>
 
 #ifdef OPJ_HAVE_LIBTIFF
-#include <tiffio.h>
+#include "tiffio.h"
 #endif /* OPJ_HAVE_LIBTIFF */
 
 #ifdef OPJ_HAVE_LIBPNG
-#include <zlib.h>
-#include <png.h>
+#include "zlib.h"
+#include "png.h"
 #endif /* OPJ_HAVE_LIBPNG */
 
 #include "openjpeg.h"
Index: src/bin/jpwl/convert.c
--- src/bin/jpwl/convert.c.orig	2014-04-29 14:58:10.000000000 +0200
+++ src/bin/jpwl/convert.c	2018-11-04 16:02:50.410298000 +0100
@@ -43,12 +43,12 @@
 #include <ctype.h>
 
 #ifdef OPJ_HAVE_LIBTIFF
-#include <tiffio.h>
+#include "tiffio.h"
 #endif /* OPJ_HAVE_LIBTIFF */
 
 #ifdef OPJ_HAVE_LIBPNG
-#include <zlib.h>
-#include <png.h>
+#include "zlib.h"
+#include "png.h"
 #endif /* OPJ_HAVE_LIBPNG */
 
 #include "openjpeg.h"