2 files changed, 1 insertions, 2 deletions

diff --git a/packages/base/src/Data/Packed/IO.hs b/packages/base/src/Data/Packed/IO.hs
index 85f1b37..b0999a8 100644
--- a/packages/base/src/Data/Packed/IO.hs
+++ b/packages/base/src/Data/Packed/IO.hs
@@ -22,7 +22,6 @@ import Text.Printf(printf)
 import Data.List(intersperse)
 import Data.Complex
 import Numeric.Vectorized(vectorScan,saveMatrix)
-import Control.Applicative((<$>))
 import Data.Packed.Internal
 
 {- | Creates a string from a matrix given a separator and a function to show each entry. Using
diff --git a/packages/base/src/Data/Packed/Internal/Numeric.hs b/packages/base/src/Data/Packed/Internal/Numeric.hs
index dc5724d..7a4dd29 100644
--- a/packages/base/src/Data/Packed/Internal/Numeric.hs
+++ b/packages/base/src/Data/Packed/Internal/Numeric.hs
@@ -240,7 +240,7 @@ instance Container Vector (Complex Float)
 
 ---------------------------------------------------------------
 
-instance (Container Vector a) => Container Matrix a
+instance (Fractional a, Element a, Container Vector a) => Container Matrix a
   where
     size' = size
     scale' x = liftMatrix (scale' x)