diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+1.16.1
+----
+* Added `Trace` instance for `V1`.
+
 1.16
 ----
 * Renamed `kronecker` to `scaled`.
diff --git a/linear.cabal b/linear.cabal
--- a/linear.cabal
+++ b/linear.cabal
@@ -1,6 +1,6 @@
 name:          linear
 category:      Math, Algebra
-version:       1.16
+version:       1.16.1
 license:       BSD3
 cabal-version: >= 1.8
 license-file:  LICENSE
diff --git a/src/Linear/Trace.hs b/src/Linear/Trace.hs
--- a/src/Linear/Trace.hs
+++ b/src/Linear/Trace.hs
@@ -20,8 +20,8 @@
   ) where
 
 import Control.Monad as Monad
--- import Linear.V1
 import Linear.V0
+import Linear.V1
 import Linear.V2
 import Linear.V3
 import Linear.V4
@@ -83,6 +83,7 @@
 
 instance Dim n => Trace (V n)
 instance Trace V0
+instance Trace V1
 instance Trace V2
 instance Trace V3
 instance Trace V4