diff --git a/savant/api/avro-schemas/payload/VideoFrame/vision.module.ExternalFrame.avsc b/savant/api/avro-schemas/payload/VideoFrame/vision.module.ExternalFrame.avsc
index 4bf4be43b..ea8049656 100644
--- a/savant/api/avro-schemas/payload/VideoFrame/vision.module.ExternalFrame.avsc
+++ b/savant/api/avro-schemas/payload/VideoFrame/vision.module.ExternalFrame.avsc
@@ -5,14 +5,8 @@
     "fields": [
         {
             "name": "type",
-            "type": {
-                "type": "enum",
-                "name": "ExternalFrameType",
-                "symbols": [
-                    "zeromq"
-                ]
-            },
-            "doc": "External frame type, e.g. 'zeromq'."
+            "type": "string",
+            "doc": "External frame type, e.g. 'zeromq', 'keydb'."
         },
         {
             "name": "location",
diff --git a/savant/api/enums.py b/savant/api/enums.py
index 4f64292e2..fa5ed5f8c 100644
--- a/savant/api/enums.py
+++ b/savant/api/enums.py
@@ -3,3 +3,4 @@
 
 class ExternalFrameType(Enum):
     ZEROMQ = 'zeromq'
+    KEYDB = 'keydb'