diff --git a/monkey/monkey_island/cc/repository/__init__.py b/monkey/monkey_island/cc/repository/__init__.py
index 075317b43..a57518abf 100644
--- a/monkey/monkey_island/cc/repository/__init__.py
+++ b/monkey/monkey_island/cc/repository/__init__.py
@@ -1,4 +1,4 @@
-from .errors import RemovalError, RetrievalError, StorageError
+from .errors import RemovalError, RetrievalError, StorageError, UnknownRecordError
 
 
 from .i_file_repository import FileNotFoundError, IFileRepository
diff --git a/monkey/monkey_island/cc/repository/errors.py b/monkey/monkey_island/cc/repository/errors.py
index aeb9fa23c..986d3007a 100644
--- a/monkey/monkey_island/cc/repository/errors.py
+++ b/monkey/monkey_island/cc/repository/errors.py
@@ -20,3 +20,9 @@ class StorageError(RuntimeError):
     """
 
     pass
+
+
+class UnknownRecordError(RuntimeError):
+    """
+    Raised when the repository does not contain any data matching the request.
+    """