diff --git a/README.rst b/README.rst
index bdaf7b1..e06792d 100644
--- a/README.rst
+++ b/README.rst
@@ -118,7 +118,7 @@ instead of ``except (SomeError,):``.
 Write ``except Exception:``, which catches exactly the same exceptions.
 
 **B015**: Pointless comparison. This comparison does nothing but
-wastes CPU instructions. Remove it.
+waste CPU instructions. Either prepend ``assert`` or remove it.
 
 **B016**: Cannot raise a literal. Did you intend to return it or raise
 an Exception?
diff --git a/bugbear.py b/bugbear.py
index b137d03..7cb4d08 100644
--- a/bugbear.py
+++ b/bugbear.py
@@ -687,8 +687,8 @@ def visit(self, node):
 }
 B015 = Error(
     message=(
-        "B015 Pointless comparison. This comparison does nothing but wastes "
-        "CPU instructions. Remove it."
+        "B015 Pointless comparison. This comparison does nothing but waste "
+        "CPU instructions. Either prepend `assert` or remove it."
     )
 )
 B016 = Error(