diff --git a/guacamole-ext/src/main/resources/org/apache/guacamole/protocols/vnc.json b/guacamole-ext/src/main/resources/org/apache/guacamole/protocols/vnc.json
index c80dcdf27d..da39eeaae8 100644
--- a/guacamole-ext/src/main/resources/org/apache/guacamole/protocols/vnc.json
+++ b/guacamole-ext/src/main/resources/org/apache/guacamole/protocols/vnc.json
@@ -58,6 +58,14 @@
                     "type"    : "BOOLEAN",
                     "options" : [ "true" ]
                 },
+                {
+                    "name" : "compress-level",
+                    "type" : "NUMERIC"
+                },
+                {
+                    "name" : "quality-level",
+                    "type" : "NUMERIC"
+                },
                 {
                     "name" : "encodings",
                     "type" : "TEXT"
diff --git a/guacamole/src/main/frontend/src/translations/en.json b/guacamole/src/main/frontend/src/translations/en.json
index 6793c47372..47d54f6d7b 100644
--- a/guacamole/src/main/frontend/src/translations/en.json
+++ b/guacamole/src/main/frontend/src/translations/en.json
@@ -899,6 +899,7 @@
         "FIELD_HEADER_AUDIO_SERVERNAME" : "Audio server name:",
         "FIELD_HEADER_CLIPBOARD_ENCODING" : "Encoding:",
         "FIELD_HEADER_COLOR_DEPTH"      : "Color depth:",
+        "FIELD_HEADER_COMPRESS_LEVEL"   : "Compression level:",
         "FIELD_HEADER_CREATE_RECORDING_PATH" : "Automatically create recording path:",
         "FIELD_HEADER_CURSOR"           : "Cursor:",
         "FIELD_HEADER_DEST_HOST"        : "Destination host:",
@@ -912,6 +913,7 @@
         "FIELD_HEADER_USERNAME"         : "Username:",
         "FIELD_HEADER_PASSWORD"         : "Password:",
         "FIELD_HEADER_PORT"             : "Port:",
+        "FIELD_HEADER_QUALITY_LEVEL"    : "Display quality:",
         "FIELD_HEADER_READ_ONLY"        : "Read-only:",
         "FIELD_HEADER_RECORDING_WRITE_EXISTING" : "@:APP.FIELD_HEADER_RECORDING_WRITE_EXISTING",
         "FIELD_HEADER_RECORDING_EXCLUDE_MOUSE"  : "Exclude mouse:",