diff --git a/src/caoscrawler/identifiable.py b/src/caoscrawler/identifiable.py
index 129bb9f36ddb5a44eb0491984bb4a70837449bed..32d07b5e3d948c460a44971f22aa3b65032a6077 100644
--- a/src/caoscrawler/identifiable.py
+++ b/src/caoscrawler/identifiable.py
@@ -111,7 +111,7 @@ class Identifiable():
         3. equal if attribute representations are equal
         """
         if not isinstance(other, Identifiable):
-            raiser ValueError("Identifiable can only be compared to other Identifiable objects.")
+            raise ValueError("Identifiable can only be compared to other Identifiable objects.")
         elif self.record_id is not None and other.record_id is not None:
             return self.record_id == other.record_id
         elif self.path is not None and other.path is not None:
diff --git a/src/caoscrawler/identified_cache.py b/src/caoscrawler/identified_cache.py
index 9df66e926903d0f975e1f6813a06b21207f75e6a..aa2d82f8e66c738e737c62f3cc68eaf60127e28b 100644
--- a/src/caoscrawler/identified_cache.py
+++ b/src/caoscrawler/identified_cache.py
@@ -49,7 +49,7 @@ class IdentifiedCache(object):
     caches).
     """
 
-   def __init__(self):
+    def __init__(self):
         self._cache = {}
         self._identifiables = []
 
diff --git a/unittests/test_file_identifiables.py b/unittests/test_file_identifiables.py
index caa2572d8da276d5f0c58c700561f53c5d7462b8..f71ea75a36049084591851409d71fd9db291f07f 100644
--- a/unittests/test_file_identifiables.py
+++ b/unittests/test_file_identifiables.py
@@ -18,7 +18,8 @@ def test_file_identifiable():
     identifiable = ident.get_identifiable(file_obj)
 
     # the path is copied to the identifiable
-    assert file_obj != identifiable
+    with raises(ValueError):
+        file_obj != identifiable
     assert file_obj.path == identifiable.path
 
     # since the path does not exist in the data in ident, the follwoing functions return None