Index: uspace/app/testwrit/testwrit.c
===================================================================
--- uspace/app/testwrit/testwrit.c	(revision 2674db6a4e996ff801e50122dc47e7e23ce0e20c)
+++ uspace/app/testwrit/testwrit.c	(revision e18de3c4ff73329ab91e81d578f312420d58e025)
@@ -63,5 +63,5 @@
 	file_name = argv[2];
 
-	file = fopen(file_name, "w");
+	file = fopen(file_name, "a");
 	if (file == NULL) {
 		printf("Failed opening file\n");