diff --git a/bugbear.py b/bugbear.py
index 4717a4f..f4252fc 100644
--- a/bugbear.py
+++ b/bugbear.py
@@ -1817,7 +1817,7 @@ def visit_Lambda(self, node):
 )
 B908 = Error(
     message=(
-        "B908 assertRaises-type context should not contains more than one top-level"
+        "B908 assertRaises-type context should not contain more than one top-level"
         " statement."
     )
 )