diff --git a/Data/Vector.hs b/Data/Vector.hs
index cca27eaa..883b39cd 100644
--- a/Data/Vector.hs
+++ b/Data/Vector.hs
@@ -1342,11 +1342,11 @@ unstablePartition :: (a -> Bool) -> Vector a -> (Vector a, Vector a)
 {-# INLINE unstablePartition #-}
 unstablePartition = G.unstablePartition
 
--- | /O(n)/ Split the vector in two parts, the first one containing the
---   @Left@ elements and the second containing the @Right@ elements.
---   The relative order of the elements is preserved.
+-- | /O(n)/ Split the vector into two parts, the first one containing the
+-- @`Left`@ elements and the second containing the @`Right`@ elements.
+-- The relative order of the elements is preserved.
 --
---   @since 0.12.1.0
+-- @since 0.12.1.0
 partitionWith :: (a -> Either b c) -> Vector a -> (Vector b, Vector c)
 {-# INLINE partitionWith #-}
 partitionWith = G.partitionWith
diff --git a/Data/Vector/Generic.hs b/Data/Vector/Generic.hs
index 507bf7d5..ff51f5c5 100644
--- a/Data/Vector/Generic.hs
+++ b/Data/Vector/Generic.hs
@@ -1436,6 +1436,11 @@ partition_stream f s = s `seq` runST (
     v2 <- unsafeFreeze mv2
     return (v1,v2))
 
+-- | /O(n)/ Split the vector into two parts, the first one containing the
+-- @`Left`@ elements and the second containing the @`Right`@ elements.
+-- The relative order of the elements is preserved.
+--
+-- @since 0.12.1.0
 partitionWith :: (Vector v a, Vector v b, Vector v c) => (a -> Either b c) -> v a -> (v b, v c)
 {-# INLINE partitionWith #-}
 partitionWith f = partition_with_stream f . stream
diff --git a/Data/Vector/Primitive.hs b/Data/Vector/Primitive.hs
index 7300632d..4d45bf44 100644
--- a/Data/Vector/Primitive.hs
+++ b/Data/Vector/Primitive.hs
@@ -1085,11 +1085,11 @@ unstablePartition :: Prim a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
 {-# INLINE unstablePartition #-}
 unstablePartition = G.unstablePartition
 
--- | /O(n)/ Split the vector in two parts, the first one containing the
---   @Right@ elements and the second containing the @Left@ elements.
---   The relative order of the elements is preserved.
+-- | /O(n)/ Split the vector into two parts, the first one containing the
+-- @`Left`@ elements and the second containing the @`Right`@ elements.
+-- The relative order of the elements is preserved.
 --
---   @since 0.12.1.0
+-- @since 0.12.1.0
 partitionWith :: (Prim a, Prim b, Prim c) => (a -> Either b c) -> Vector a -> (Vector b, Vector c)
 {-# INLINE partitionWith #-}
 partitionWith = G.partitionWith
diff --git a/Data/Vector/Storable.hs b/Data/Vector/Storable.hs
index bb70174f..1ea40797 100644
--- a/Data/Vector/Storable.hs
+++ b/Data/Vector/Storable.hs
@@ -1106,11 +1106,11 @@ unstablePartition :: Storable a => (a -> Bool) -> Vector a -> (Vector a, Vector
 {-# INLINE unstablePartition #-}
 unstablePartition = G.unstablePartition
 
--- | /O(n)/ Split the vector in two parts, the first one containing the
---   @Right@ elements and the second containing the @Left@ elements.
---   The relative order of the elements is preserved.
+-- | /O(n)/ Split the vector into two parts, the first one containing the
+-- @`Left`@ elements and the second containing the @`Right`@ elements.
+-- The relative order of the elements is preserved.
 --
---   @since 0.12.1.0
+-- @since 0.12.1.0
 partitionWith :: (Storable a, Storable b, Storable c) => (a -> Either b c) -> Vector a -> (Vector b, Vector c)
 {-# INLINE partitionWith #-}
 partitionWith = G.partitionWith
diff --git a/Data/Vector/Unboxed.hs b/Data/Vector/Unboxed.hs
index 8ed5addb..5ec811d8 100644
--- a/Data/Vector/Unboxed.hs
+++ b/Data/Vector/Unboxed.hs
@@ -1082,11 +1082,11 @@ unstablePartition :: Unbox a => (a -> Bool) -> Vector a -> (Vector a, Vector a)
 {-# INLINE unstablePartition #-}
 unstablePartition = G.unstablePartition
 
--- | /O(n)/ Split the vector in two parts, the first one containing the
---   @Right@ elements and the second containing the @Left@ elements.
---   The relative order of the elements is preserved.
+-- | /O(n)/ Split the vector into two parts, the first one containing the
+-- @`Left`@ elements and the second containing the @`Right`@ elements.
+-- The relative order of the elements is preserved.
 --
---   @since 0.12.1.0
+-- @since 0.12.1.0
 partitionWith :: (Unbox a, Unbox b, Unbox c) => (a -> Either b c) -> Vector a -> (Vector b, Vector c)
 {-# INLINE partitionWith #-}
 partitionWith = G.partitionWith