diff --git a/testing/testsuites/kernel/fs/cases/fs_fsync_test.c b/testing/testsuites/kernel/fs/cases/fs_fsync_test.c
index d212d02da..e449ab808 100644
--- a/testing/testsuites/kernel/fs/cases/fs_fsync_test.c
+++ b/testing/testsuites/kernel/fs/cases/fs_fsync_test.c
@@ -117,7 +117,7 @@ void test_nuttx_fs_fsync02(FAR void **state)
 
   bufsize = statfsbuf.f_bsize;
 
-  syslog(LOG_INFO, "the bsize = %ld\n", statfsbuf.f_bsize);
+  syslog(LOG_INFO, "the bsize = %" PRIdPTR "\n", statfsbuf.f_bsize);
 
   /* malloc memory */
 
diff --git a/testing/testsuites/kernel/time/cases/clock_test_timer03.c b/testing/testsuites/kernel/time/cases/clock_test_timer03.c
index 9839ed73b..c23093dd5 100644
--- a/testing/testsuites/kernel/time/cases/clock_test_timer03.c
+++ b/testing/testsuites/kernel/time/cases/clock_test_timer03.c
@@ -123,7 +123,8 @@ void test_nuttx_clock_test_timer03(FAR void **state)
       /* 20000000, 2 ticks. */
 
       failed += (escaped < expected || (escaped - expected) >= 20000000);
-      syslog(LOG_INFO, "expected = %ld escaped = %ld failed = %d",
+      syslog(LOG_INFO,
+             "expected = %" PRId64 " escaped = %" PRId64 " failed = %d",
              expected, escaped, failed);
     }