diff --git a/plugins/libarchive/readwritelibarchiveplugin.cpp b/plugins/libarchive/readwritelibarchiveplugin.cpp
--- a/plugins/libarchive/readwritelibarchiveplugin.cpp
+++ b/plugins/libarchive/readwritelibarchiveplugin.cpp
@@ -184,6 +184,18 @@
                               QLatin1String(archive_error_string(arch_writer.data()))));
             return false;
         }
+
+        // Set compression level if passed in CompressionOptions.
+        if (options.contains(QStringLiteral("CompressionLevel"))) {
+            qCDebug(ARK) << "Using compression level:" << options.value(QStringLiteral("CompressionLevel")).toString();
+            ret = archive_write_set_filter_option(arch_writer.data(), NULL, "compression-level", options.value(QStringLiteral("CompressionLevel")).toString().toUtf8());
+            if (ret != ARCHIVE_OK) {
+                qCWarning(ARK) << "Failed to set compression level";
+                emit error(xi18nc("@info", "Setting the compression level failed with the following error:<nl/><message>%1</message>",
+                                  QLatin1String(archive_error_string(arch_writer.data()))));
+                return false;
+            }
+        }
     }
 
     ret = archive_write_open_fd(arch_writer.data(), tempFile.handle());