diff --git a/python/sdss_semaphore/__init__.py b/python/sdss_semaphore/__init__.py
index aa9fce3..45253d2 100644
--- a/python/sdss_semaphore/__init__.py
+++ b/python/sdss_semaphore/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.2.3"
+__version__ = "0.2.4"
 
 import numpy as np
 import warnings
@@ -69,6 +69,11 @@ def __init__(self, array: Optional[Union[np.ndarray, Iterable[Iterable[int]], It
             self.array = np.atleast_2d(array).astype(self.dtype)
         return None
 
+    def __getitem__(self, index: int):
+        if isinstance(index, tuple):
+            raise IndexError("too many indices for array; you can only slice on items")
+        return self.__class__(self.array[[index]])
+
     @property
     def dtype(self):
         raise NotImplementedError(f"`dtype` must be defined in subclass")
@@ -345,4 +350,4 @@ def __repr__(self):
 
     def __len__(self):
         N, B = self.array.shape
-        return N
\ No newline at end of file
+        return N