diff --git a/eland/arithmetics.py b/eland/arithmetics.py
index 5fe0d7d..498cedd 100644
--- a/eland/arithmetics.py
+++ b/eland/arithmetics.py
@@ -33,6 +33,7 @@ class ArithmeticObject(ABC):
     def value(self) -> str:
         pass
 
+    @property
     @abstractmethod
     def dtype(self) -> "DTypeLike":
         pass
diff --git a/eland/common.py b/eland/common.py
index 125b79d..71c0db5 100644
--- a/eland/common.py
+++ b/eland/common.py
@@ -345,5 +345,5 @@ def es_version(es_client: Elasticsearch) -> Tuple[int, int, int]:
             )
 
     else:
-        eland_es_version = es_client._eland_es_version  # type: ignore
+        eland_es_version = es_client._eland_es_version
     return eland_es_version