diff --git a/Crypto/ECC.hs b/Crypto/ECC.hs
index e2897da..7734866 100644
--- a/Crypto/ECC.hs
+++ b/Crypto/ECC.hs
@@ -27,6 +27,7 @@ import qualified Crypto.ECC.Simple.Types as Simple
 import qualified Crypto.ECC.Simple.Prim as Simple
 import           Crypto.Random
 import           Crypto.Error
+import           Crypto.Internal.Compat
 import           Crypto.Internal.Proxy
 import           Crypto.Internal.Imports
 import           Crypto.Internal.ByteArray (ByteArray, ByteArrayAccess, ScrubbedBytes)
diff --git a/Crypto/ECC/Simple/Prim.hs b/Crypto/ECC/Simple/Prim.hs
index 872e77e..21e492f 100644
--- a/Crypto/ECC/Simple/Prim.hs
+++ b/Crypto/ECC/Simple/Prim.hs
@@ -17,6 +17,7 @@ module Crypto.ECC.Simple.Prim
 
 import Data.Maybe
 import Data.Proxy
+import Crypto.Internal.Compat
 import Crypto.Number.ModArithmetic
 import Crypto.Number.F2m
 import Crypto.Number.Generate (generateBetween)