diff --git a/c/src/exec/rtems/include/rtems.h b/c/src/exec/rtems/include/rtems.h
index 16b6e64705..e8a13eeaba 100644
--- a/c/src/exec/rtems/include/rtems.h
+++ b/c/src/exec/rtems/include/rtems.h
@@ -40,6 +40,7 @@ extern "C" {
 
 #include <rtems/config.h>
 #include <rtems/init.h>
+#include <rtems/rtems/options.h>
 #include <rtems/rtems/tasks.h>
 #include <rtems/rtems/intr.h>
 #include <rtems/rtems/cache.h>
diff --git a/cpukit/rtems/include/rtems.h b/cpukit/rtems/include/rtems.h
index 16b6e64705..e8a13eeaba 100644
--- a/cpukit/rtems/include/rtems.h
+++ b/cpukit/rtems/include/rtems.h
@@ -40,6 +40,7 @@ extern "C" {
 
 #include <rtems/config.h>
 #include <rtems/init.h>
+#include <rtems/rtems/options.h>
 #include <rtems/rtems/tasks.h>
 #include <rtems/rtems/intr.h>
 #include <rtems/rtems/cache.h>