diff --git a/conformance/tests/protocols_generic.py b/conformance/tests/protocols_generic.py
index 95886428..b417e00f 100644
--- a/conformance/tests/protocols_generic.py
+++ b/conformance/tests/protocols_generic.py
@@ -40,7 +40,7 @@ def method1(self, x: str) -> str:
 p2: Proto1[int, str] = Concrete1()  # E: incompatible type
 
 
-# Runtime error: Protocol and Generic cannot be used together as base classes.
+# > It is an error to combine the shorthand with Generic[T, S, ...]
 class Proto2(Protocol[T_co], Generic[T_co]):  # E
     ...