diff --git a/README.md b/README.md
index e6fd6060..c571a594 100644
--- a/README.md
+++ b/README.md
@@ -113,6 +113,14 @@ Mutant cannot emit mutations for...
     end
     ```
 
+* methods defined with eval:
+
+    ```ruby
+    class Foo
+      class_eval('def bar; end') # cannot mutate
+    end
+    ```
+
 Mutation-Operators:
 -------------------