diff --git a/packages/base/src/Internal/Static.hs b/packages/base/src/Internal/Static.hs
index 019a060b..37556fe9 100644
--- a/packages/base/src/Internal/Static.hs
+++ b/packages/base/src/Internal/Static.hs
@@ -571,12 +571,12 @@ instance KnownNat n => Disp (C n)
 
 overMatL' :: (KnownNat m, KnownNat n)
           => (LA.Matrix ℝ -> LA.Matrix ℝ) -> L m n -> L m n
-overMatL' f = mkL . f . unwrap
+overMatL' f = mkL . f . extract
 {-# INLINE overMatL' #-}
 
 overMatM' :: (KnownNat m, KnownNat n)
           => (LA.Matrix ℂ -> LA.Matrix ℂ) -> M m n -> M m n
-overMatM' f = mkM . f . unwrap
+overMatM' f = mkM . f . extract
 {-# INLINE overMatM' #-}