Index: uspace/lib/c/include/ipc/common.h
===================================================================
--- uspace/lib/c/include/ipc/common.h	(revision c06994673347954891a57710998cf1e087a59e8b)
+++ uspace/lib/c/include/ipc/common.h	(revision 7d364fb8ea8ef4fe1f9f9a2a7f89c21619faf824)
@@ -39,4 +39,5 @@
 #include <abi/ipc/ipc.h>
 #include <atomic.h>
+#include <task.h>
 
 #define IPC_FLAG_BLOCKING  0x01
@@ -44,5 +45,5 @@
 typedef struct {
 	sysarg_t args[IPC_CALL_LEN];
-	sysarg_t in_task_hash;
+	task_id_t in_task_id;
 	sysarg_t in_phone_hash;
 } ipc_call_t;