diff --git a/bin/tests/system/enginepkcs11/prereq.sh b/bin/tests/system/enginepkcs11/prereq.sh
index 449d9f2058..4eb2788a62 100644
--- a/bin/tests/system/enginepkcs11/prereq.sh
+++ b/bin/tests/system/enginepkcs11/prereq.sh
@@ -13,7 +13,7 @@
 
 . ../conf.sh
 
-[ "prereq/var/tmp/etc/openssl-provider.cnf" -eq "prereq${OPENSSL_CONF}" ] || {
+[ "prereq/var/tmp/etc/openssl-provider.cnf" = "prereq${OPENSSL_CONF}" ] || {
   echo_i "skip: pkcs11-provider not enabled"
   exit 255
 }
diff --git a/bin/tests/system/enginepkcs11/tests_sh_enginepkcs11.py b/bin/tests/system/enginepkcs11/tests_sh_enginepkcs11.py
index 334142dde2..908c65cedc 100644
--- a/bin/tests/system/enginepkcs11/tests_sh_enginepkcs11.py
+++ b/bin/tests/system/enginepkcs11/tests_sh_enginepkcs11.py
@@ -9,6 +9,9 @@
 # See the COPYRIGHT file distributed with this work for additional
 # information regarding copyright ownership.
 
+import isctest.mark
 
+
+@isctest.mark.flaky(max_runs=3)  # GL#4605
 def test_enginepkcs11(run_tests_sh):
     run_tests_sh()