diff --git a/tests/LowLevelTests.hs b/tests/LowLevelTests.hs
index 51bd99e..af5bf2c 100644
--- a/tests/LowLevelTests.hs
+++ b/tests/LowLevelTests.hs
@@ -4,6 +4,7 @@ module LowLevelTests (lowLevelTests) where
 
 import           Control.Concurrent.Async
 import           Data.ByteString                (ByteString)
+import qualified Data.ByteString                as B
 import qualified Data.Map                       as M
 import           Foreign.Marshal.Alloc
 import           Foreign.Ptr