diff --git a/gcc/ada/gcc-interface/misc.cc b/gcc/ada/gcc-interface/misc.cc
index 645937f796ca44e467ba30f1378048bcb5552f4c..2aa1bfd410b2dd1bfe88b79b03c571549fe7d6ee 100644
--- a/gcc/ada/gcc-interface/misc.cc
+++ b/gcc/ada/gcc-interface/misc.cc
@@ -28,6 +28,7 @@
 #include "coretypes.h"
 #include "target.h"
 #include "tree.h"
+#include "memmodel.h"
 #include "tm_p.h"
 #include "diagnostic.h"
 #include "opts.h"