diff --git a/src/Data/Span.hs b/src/Data/Span.hs
index f1f68889c..8d172e069 100644
--- a/src/Data/Span.hs
+++ b/src/Data/Span.hs
@@ -19,7 +19,6 @@ import Prologue
 import           Control.Lens.Lens
 import           Data.Aeson ((.:), (.=))
 import qualified Data.Aeson as A
-import           GHC.Stack
 import           Proto3.Suite
 import           Proto3.Wire.Decode as Decode
 import           Proto3.Wire.Encode as Encode