Index: libcfa/src/concurrency/preemption.cfa
===================================================================
--- libcfa/src/concurrency/preemption.cfa	(revision ba9baadeb7d347b3375a3c22e4ce3628359e9187)
+++ libcfa/src/concurrency/preemption.cfa	(revision d69f4bb48d0f1f51a0fe4ab1cd6148a79274c871)
@@ -14,5 +14,5 @@
 //
 
-#include "preemption.h"
+#include "preemption.hfa"
 #include <assert.h>
 
@@ -24,5 +24,5 @@
 }
 
-#include "bits/signal.h"
+#include "bits/signal.hfa"
 
 #if !defined(__CFA_DEFAULT_PREEMPTION__)