Index: uspace/lib/c/generic/async/client.c
===================================================================
--- uspace/lib/c/generic/async/client.c	(revision 4f13e19af6dd310dbc87a66e115ff6ac62b71bde)
+++ uspace/lib/c/generic/async/client.c	(revision fc448f5f560ea1a9a7e90a7dff181e501713aa1e)
@@ -95,10 +95,10 @@
  */
 
-#define LIBC_ASYNC_C_
+#define _LIBC_ASYNC_C_
 #include <ipc/ipc.h>
 #include <async.h>
 #include "../private/async.h"
 #include "../private/ns.h"
-#undef LIBC_ASYNC_C_
+#undef _LIBC_ASYNC_C_
 
 #include <ipc/irq.h>
Index: uspace/lib/c/generic/async/ports.c
===================================================================
--- uspace/lib/c/generic/async/ports.c	(revision 4f13e19af6dd310dbc87a66e115ff6ac62b71bde)
+++ uspace/lib/c/generic/async/ports.c	(revision fc448f5f560ea1a9a7e90a7dff181e501713aa1e)
@@ -27,9 +27,9 @@
  */
 
-#define LIBC_ASYNC_C_
+#define _LIBC_ASYNC_C_
 #include <ipc/ipc.h>
 #include <async.h>
 #include "../private/async.h"
-#undef LIBC_ASYNC_C_
+#undef _LIBC_ASYNC_C_
 
 #include <ipc/irq.h>
Index: uspace/lib/c/generic/async/server.c
===================================================================
--- uspace/lib/c/generic/async/server.c	(revision 4f13e19af6dd310dbc87a66e115ff6ac62b71bde)
+++ uspace/lib/c/generic/async/server.c	(revision fc448f5f560ea1a9a7e90a7dff181e501713aa1e)
@@ -96,9 +96,9 @@
  */
 
-#define LIBC_ASYNC_C_
+#define _LIBC_ASYNC_C_
 #include <ipc/ipc.h>
 #include <async.h>
 #include "../private/async.h"
-#undef LIBC_ASYNC_C_
+#undef _LIBC_ASYNC_C_
 
 #include <ipc/irq.h>