diff --git a/sigma/types.py b/sigma/types.py
index c9bb2e8..e7c059f 100644
--- a/sigma/types.py
+++ b/sigma/types.py
@@ -69,7 +69,6 @@ class Placeholder:
 class SigmaType(ABC):
     """Base class for Sigma value types"""
 
-    @abstractmethod
     def __init__(self, dummy: Any) -> None:
         pass