diff --git a/src/vector/backends/awkward.py b/src/vector/backends/awkward.py
index ed6a0974..a138a52c 100644
--- a/src/vector/backends/awkward.py
+++ b/src/vector/backends/awkward.py
@@ -615,7 +615,7 @@ def __getitem__(self, where: typing.Any) -> float | ak.Array | ak.Record | None:
 
 
 class VectorAwkward:
-    """One dimensional vector class for the Awkward backend."""
+    """Mixin class for Awkward vectors."""
 
     lib: types.ModuleType = numpy
 
diff --git a/src/vector/backends/numpy.py b/src/vector/backends/numpy.py
index 05443591..5399cc71 100644
--- a/src/vector/backends/numpy.py
+++ b/src/vector/backends/numpy.py
@@ -733,7 +733,7 @@ def tau(self) -> FloatArray:
 
 
 class VectorNumpy(Vector, GetItem):
-    """One dimensional vector class for the NumPy backend."""
+    """Mixin class for NumPy vectors."""
 
     lib = numpy
     dtype: numpy.dtype[typing.Any]
diff --git a/src/vector/backends/object.py b/src/vector/backends/object.py
index bb10ee69..eee1f53f 100644
--- a/src/vector/backends/object.py
+++ b/src/vector/backends/object.py
@@ -330,7 +330,7 @@ def _replace_data(obj: typing.Any, result: typing.Any) -> typing.Any:
 
 
 class VectorObject(Vector):
-    """One dimensional vector class for the object backend."""
+    """Mixin class for Object vectors."""
 
     lib = numpy