diff --git a/plugins/repository-gcs/qa/google-cloud-storage/build.gradle b/plugins/repository-gcs/qa/google-cloud-storage/build.gradle
index 5f6d90f84416b..aaa5a4ddc553b 100644
--- a/plugins/repository-gcs/qa/google-cloud-storage/build.gradle
+++ b/plugins/repository-gcs/qa/google-cloud-storage/build.gradle
@@ -103,7 +103,7 @@ task thirdPartyTest(type: Test) {
   include '**/GoogleCloudStorageThirdPartyTests.class'
   systemProperty 'tests.security.manager', false
   systemProperty 'test.google.bucket', gcsBucket
-  systemProperty 'test.google.base', gcsBasePath + "_third_party_tests_" + BuildParams.testSeed
+  nonInputProperties.systemProperty 'test.google.base', gcsBasePath + "_third_party_tests_" + BuildParams.testSeed
   nonInputProperties.systemProperty 'test.google.account', "${-> encodedCredentials.call()}"
 }
 
diff --git a/plugins/repository-s3/build.gradle b/plugins/repository-s3/build.gradle
index 34660f6b2b54b..a92f07b71ee01 100644
--- a/plugins/repository-s3/build.gradle
+++ b/plugins/repository-s3/build.gradle
@@ -137,7 +137,7 @@ task thirdPartyTest(type: Test) {
   systemProperty 'test.s3.account', s3PermanentAccessKey
   systemProperty 'test.s3.key', s3PermanentSecretKey
   systemProperty 'test.s3.bucket', s3PermanentBucket
-  systemProperty 'test.s3.base', s3PermanentBasePath + "_third_party_tests_" + BuildParams.testSeed
+  nonInputProperties.systemProperty 'test.s3.base', s3PermanentBasePath + "_third_party_tests_" + BuildParams.testSeed
 }
 
 if (useFixture) {