diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c
index 9a4349813a30a..f47495d2f070d 100644
--- a/tools/testing/selftests/x86/fsgsbase.c
+++ b/tools/testing/selftests/x86/fsgsbase.c
@@ -498,7 +498,8 @@ static void test_ptrace_write_gsbase(void)
 			 * base would zero the selector.  On newer kernels,
 			 * this behavior has changed -- poking the base
 			 * changes only the base and, if FSGSBASE is not
-			 * available, this may not effect.
+			 * available, this may have no effect once the tracee
+			 * is resumed.
 			 */
 			if (gs == 0)
 				printf("\tNote: this is expected behavior on older kernels.\n");