diff --git a/tools/testing/selftests/lib/prime_numbers.sh b/tools/testing/selftests/lib/prime_numbers.sh
index 76602d4b050fe9ee7de4d1c07116cf5a37546cc7..78e7483c8d6089c0182dace3dd7a8944b7896c3d 100755
--- a/tools/testing/selftests/lib/prime_numbers.sh
+++ b/tools/testing/selftests/lib/prime_numbers.sh
@@ -5,7 +5,7 @@
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 
-if ! /sbin/modprobe -q -r prime_numbers; then
+if ! /sbin/modprobe -q -n prime_numbers; then
 	echo "prime_numbers: module prime_numbers is not found [SKIP]"
 	exit $ksft_skip
 fi