diff --git a/cpukit/posix/src/cancelrun.c b/cpukit/posix/src/cancelrun.c
index 20132e185d..9d158627de 100644
--- a/cpukit/posix/src/cancelrun.c
+++ b/cpukit/posix/src/cancelrun.c
@@ -22,7 +22,7 @@
 #include <errno.h>
 
 #include <rtems/system.h>
-#include <rtems/score/chain.h>
+#include <rtems/score/chainimpl.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/thread.h>
 #include <rtems/score/wkspace.h>
diff --git a/cpukit/posix/src/cleanuppop.c b/cpukit/posix/src/cleanuppop.c
index 5ca476306d..4ec7084fdd 100644
--- a/cpukit/posix/src/cleanuppop.c
+++ b/cpukit/posix/src/cleanuppop.c
@@ -22,7 +22,7 @@
 #include <errno.h>
 
 #include <rtems/system.h>
-#include <rtems/score/chain.h>
+#include <rtems/score/chainimpl.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/thread.h>
 #include <rtems/score/wkspace.h>