diff --git a/cpukit/include/rtems.h b/cpukit/include/rtems.h
index 8e536b449a..8c70734b6a 100644
--- a/cpukit/include/rtems.h
+++ b/cpukit/include/rtems.h
@@ -58,6 +58,7 @@
 #include <rtems/rtems/smp.h>
 
 #include <rtems/rtems/support.h>
+#include <rtems/score/stack.h>
 
 #ifdef __cplusplus
 extern "C" {