diff --git a/cpukit/score/src/apimutexunlock.c b/cpukit/score/src/apimutexunlock.c
index 6eb54fcbbe..f590c3e7bc 100644
--- a/cpukit/score/src/apimutexunlock.c
+++ b/cpukit/score/src/apimutexunlock.c
@@ -21,6 +21,7 @@
 
 #include <rtems/system.h>
 #include <rtems/score/apimutex.h>
+#include <rtems/score/coremuteximpl.h>
 
 void _API_Mutex_Unlock(
   API_Mutex_Control *the_mutex
diff --git a/cpukit/score/src/percpu.c b/cpukit/score/src/percpu.c
index 85157db9cc..f755335b78 100644
--- a/cpukit/score/src/percpu.c
+++ b/cpukit/score/src/percpu.c
@@ -28,6 +28,7 @@
 #if defined(RTEMS_SMP)
 
   #include <rtems/score/smp.h>
+  #include <rtems/bspsmp.h>
 
   void _SMP_Handler_initialize(void)
   {