diff --git a/src/bosh-director/lib/bosh/director/jobs/update_release/package_persister.rb b/src/bosh-director/lib/bosh/director/jobs/update_release/package_persister.rb
index df25cce55ae..e8f9cd519ad 100644
--- a/src/bosh-director/lib/bosh/director/jobs/update_release/package_persister.rb
+++ b/src/bosh-director/lib/bosh/director/jobs/update_release/package_persister.rb
@@ -186,7 +186,7 @@ def delete_package_blob(logger, desc, package)
           end
 
           def validate_tgz(logger, tgz, desc)
-            result = Bosh::Common::Exec.sh("tar -tzf #{tgz} 2>&1", on_error: :return)
+            result = Bosh::Common::Exec.sh("tar -tf #{tgz} 2>&1", on_error: :return)
             if result.failed?
               logger.error("Extracting #{desc} archive failed, tar returned #{result.exit_status}, output: #{result.output}")
               raise PackageInvalidArchive, "Extracting #{desc} archive failed. Check task debug log for details."
diff --git a/src/bosh-director/spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb b/src/bosh-director/spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb
index 31010a48fe4..d49d64ae2e0 100644
--- a/src/bosh-director/spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb
+++ b/src/bosh-director/spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb
@@ -86,7 +86,7 @@ def persist_packages(manifest_packages, compiled_flag)
             ['fake-name-1.tgz', 'fake-name-2.tgz'].each do |name|
               tgz = "#{release_dir}/compiled_packages/#{name}"
               allow(Bosh::Common::Exec).to receive(:sh).with(
-                "tar -tzf #{tgz} 2>&1",
+                "tar -tf #{tgz} 2>&1",
                 on_error: :return,
               ).and_return(instance_double(Bosh::Common::Exec::Result, failed?: false))
               expect(BlobUtil).to receive(:create_blob).with(tgz).and_return(1)
@@ -167,7 +167,7 @@ def persist_packages(manifest_packages, compiled_flag)
                 ['fake-name-2.tgz'].each do |name|
                   tgz = "#{release_dir}/compiled_packages/#{name}"
                   allow(Bosh::Common::Exec).to receive(:sh).with(
-                    "tar -tzf #{tgz} 2>&1",
+                    "tar -tf #{tgz} 2>&1",
                     on_error: :return,
                   ).and_return(instance_double(Bosh::Common::Exec::Result, failed?: false))
                   expect(BlobUtil).to receive(:create_blob).with(tgz).and_return(1)
@@ -203,7 +203,7 @@ def persist_packages(manifest_packages, compiled_flag)
                 ['fake-name-1.tgz', 'fake-name-2.tgz'].each do |name|
                   tgz = "#{release_dir}/compiled_packages/#{name}"
                   allow(Bosh::Common::Exec).to receive(:sh).with(
-                    "tar -tzf #{tgz} 2>&1",
+                    "tar -tf #{tgz} 2>&1",
                     on_error: :return,
                   ).and_return(instance_double(Bosh::Common::Exec::Result, failed?: false))
                 end
@@ -261,7 +261,7 @@ def persist_packages(manifest_packages, compiled_flag)
             it "creates packages that don't already exist" do
               tgz = "#{release_dir}/packages/fake-name-2.tgz"
               allow(Bosh::Common::Exec).to receive(:sh).with(
-                "tar -tzf #{tgz} 2>&1",
+                "tar -tf #{tgz} 2>&1",
                 on_error: :return,
               ).and_return(instance_double(Bosh::Common::Exec::Result, failed?: false))
               expect(BlobUtil).to receive(:create_blob).with(tgz).and_return(1)