diff -Naurb a/testcases/kernel/syscalls/tkill/tkill01.c b/testcases/kernel/syscalls/tkill/tkill01.c
--- a/testcases/kernel/syscalls/tkill/tkill01.c	2009-05-22 00:15:51.000000000 +0530
+++ b/testcases/kernel/syscalls/tkill/tkill01.c	2009-06-17 23:03:45.000000000 +0530
@@ -140,13 +140,13 @@
                 Tst_count = 0;
                 for (testno = 0; testno < TST_TOTAL; ++testno) {
                      TEST(signal(SIGUSR1, &sig_action));     
-                     TEST(tid = syscall(224));     
+                     TEST(tid = syscall( __NR_gettid));     
 		     if(TEST_RETURN == -1) {
                  	   tst_resm(TFAIL, "%s failed - errno = %d : %s", TCID, TEST_ERRNO, strerror(TEST_ERRNO));
 			   cleanup();
 			   tst_exit();
                      }
-                     TEST(syscall(238,tid, SIGUSR1));     
+                     TEST(syscall(__NR_tkill,tid, SIGUSR1));     
 		     if(TEST_RETURN == 0) {
 				if(!sig_count);
         			tst_resm(TPASS, "tkill call succeeded");
diff -Naurb a/testcases/kernel/syscalls/tkill/tkill02.c b/testcases/kernel/syscalls/tkill/tkill02.c
--- a/testcases/kernel/syscalls/tkill/tkill02.c	2009-05-22 00:17:14.000000000 +0530
+++ b/testcases/kernel/syscalls/tkill/tkill02.c	2009-06-17 23:37:21.000000000 +0530
@@ -139,7 +139,7 @@
                 for (testno = 0; testno < TST_TOTAL; ++testno) {
 
 			for(i=0; i<2; i++){
-		                TEST(syscall(238, test_cases[i].tid, SIGUSR1));
+		                TEST(syscall(__NR_tkill, test_cases[i].tid, SIGUSR1));
 		     		if(TEST_RETURN == -1) {
 			            	if(TEST_ERRNO == test_cases[i].exp_errno){
 						tst_resm(TINFO, "%s() call with tid:%d got expected errno:%d", TCID, test_cases[i].tid,TEST_ERRNO);