diff --git a/src/core/common/ojph_codestream.h b/src/core/common/ojph_codestream.h
index 2d7e74a..a269859 100644
--- a/src/core/common/ojph_codestream.h
+++ b/src/core/common/ojph_codestream.h
@@ -41,6 +41,7 @@
 
 #include <cstdlib>
 
+#include "ojph_arch.h"
 #include "ojph_defs.h"
 
 namespace ojph {
diff --git a/src/core/common/ojph_params.h b/src/core/common/ojph_params.h
index 2ab85db..76ab4c1 100644
--- a/src/core/common/ojph_params.h
+++ b/src/core/common/ojph_params.h
@@ -39,6 +39,7 @@
 #ifndef OJPH_PARAMS_H
 #define OJPH_PARAMS_H
 
+#include "ojph_arch.h"
 #include "ojph_base.h"
 
 namespace ojph {