diff --git a/tests/clam.py b/tests/clam.py
index 2f9dde1..f5f00f4 100644
--- a/tests/clam.py
+++ b/tests/clam.py
@@ -32,7 +32,7 @@ class Species(proto.Enum):
 
 
 class Color(proto.Enum):
-    COLOR_UNKNOWN = 0
+    UNKNOWN = 0
     BLUE = 1
     ORANGE = 2
     GREEN = 3