Index: kernel/generic/src/ipc/ops/sharein.c
===================================================================
--- kernel/generic/src/ipc/ops/sharein.c	(revision edc64c03b91257aecae0d60886bd274aea300bf9)
+++ kernel/generic/src/ipc/ops/sharein.c	(revision c8da69decc837e7bdce336b8a4bb4eb22bbdb526)
@@ -51,6 +51,6 @@
 		errno_t rc = as_area_share(AS, IPC_GET_ARG1(answer->data),
 		    IPC_GET_ARG1(*olddata), as, IPC_GET_ARG2(answer->data),
-		    &dst_base, IPC_GET_ARG3(answer->data));
-		IPC_SET_ARG4(answer->data, dst_base);
+		    &dst_base, IPC_GET_ARG2(*olddata));
+		IPC_SET_ARG5(answer->data, dst_base);
 		IPC_SET_RETVAL(answer->data, rc);
 	}