diff --git a/libopenjpeg/opj_includes.h b/libopenjpeg/opj_includes.h
index e9194fd9..ecccf4e1 100644
--- a/libopenjpeg/opj_includes.h
+++ b/libopenjpeg/opj_includes.h
@@ -46,6 +46,7 @@
    OpenJPEG interface
  ==========================================================
  */
+#include "opj_config.h"
 #include "openjpeg.h"
 
 /*