diff --git a/tasks/libposix/mmap.c b/tasks/libposix/mmap.c
index 5c4c10e..5855b6c 100644
--- a/tasks/libposix/mmap.c
+++ b/tasks/libposix/mmap.c
@@ -78,7 +78,7 @@ int l4_munmap(void *start, size_t length)
 	write_mr(L4SYS_ARG1, length);
 
 	/* Call pager with MMAP request. */
-	if ((err = l4_sendrecv(PAGER_TID, PAGER_TID, L4_IPC_TAG_MMAP)) < 0) {
+	if ((err = l4_sendrecv(PAGER_TID, PAGER_TID, L4_IPC_TAG_MUNMAP)) < 0) {
 		printf("%s: IPC Error: %d.\n", __FUNCTION__, err);
 		return err;
 	}
@@ -116,7 +116,7 @@ int l4_msync(void *start, size_t length, int flags)
 	}
 	/* Check if syscall itself was successful */
 	if ((errno = l4_get_retval()) < 0) {
-		printf("%s: MUNMAP Error: %d.\n", __FUNCTION__, errno);
+		printf("%s: MSYNC Error: %d.\n", __FUNCTION__, errno);
 		return -1;
 	}
 	return 0;
diff --git a/tasks/test0/src/mmaptest.c b/tasks/test0/src/mmaptest.c
index 1ab2898..c7f70af 100644
--- a/tasks/test0/src/mmaptest.c
+++ b/tasks/test0/src/mmaptest.c
@@ -38,17 +38,20 @@ int mmaptest(void)
 	else
 		printf("write: Success.\n");
 
+	printf("%s: Calling mmap()\n", __TASKNAME__);
 	if ((int)(base = mmap(0, PAGE_SIZE*16, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) < 0)
 		perror("mmap");
 	else
 		printf("mmap: Success: %p\n", base);
 
 	*(unsigned int *)(base + PAGE_SIZE*2) = 0x1000;
+	printf("%s: Calling msync()\n", __TASKNAME__);
 	if (msync(base + PAGE_SIZE*2, PAGE_SIZE, MS_SYNC) < 0)
 		perror("msync");
 	else
 		printf("msync: Success: %p\n", base);
 
+	printf("%s: Calling munmap()\n", __TASKNAME__);
 	if (munmap(base + PAGE_SIZE*2, PAGE_SIZE) < 0)
 		perror("munmap");
 	else