Index: uspace/app/bdsh/cmds/modules/mkfile/mkfile.c
===================================================================
--- uspace/app/bdsh/cmds/modules/mkfile/mkfile.c	(revision bc41f3a30573f904e3f810d583bba0b92e579543)
+++ uspace/app/bdsh/cmds/modules/mkfile/mkfile.c	(revision f644472b977cc4e82d0187fb58bd63ad7bd5962a)
@@ -121,4 +121,5 @@
 	void *buffer;
 	bool create_sparse = false;
+	aoff64_t pos = 0;
 
 	file_size = 0;
@@ -164,11 +165,7 @@
 	if (create_sparse && file_size > 0) {
 		const char byte = 0x00;
-
-		if ((rc2 = lseek(fd, file_size - 1, SEEK_SET)) < 0) {
-			close(fd);
-			goto error;
-		}
-
-		rc2 = write(fd, &byte, sizeof(char));
+		
+		pos = file_size - 1;
+		rc2 = write(fd, &pos, &byte, sizeof(char));
 		if (rc2 < 0) {
 			close(fd);
@@ -187,5 +184,5 @@
 	while (total_written < file_size) {
 		to_write = min(file_size - total_written, BUFFER_SIZE);
-		rc = write(fd, buffer, to_write);
+		rc = write(fd, &pos, buffer, to_write);
 		if (rc <= 0) {
 			printf("%s: Error writing file (%d).\n", cmdname, errno);