diff --git a/claripy/annotation.py b/claripy/annotation.py
index 1fdc345b1..d27f0391e 100644
--- a/claripy/annotation.py
+++ b/claripy/annotation.py
@@ -139,5 +139,8 @@ class UninitializedAnnotation(Annotation):
     def __hash__(self):
         return hash("uninitialized")
 
+    def __eq__(self, other):
+        return isinstance(other, UninitializedAnnotation)
+
     def __repr__(self):
         return "<UninitializedAnnotation>"