diff --git a/semantic-ast/semantic-ast.cabal b/semantic-ast/semantic-ast.cabal
index 856b64dec..5da52cc8d 100644
--- a/semantic-ast/semantic-ast.cabal
+++ b/semantic-ast/semantic-ast.cabal
@@ -24,6 +24,7 @@ library
                      , tree-sitter ^>= 0.4
                      , semantic-source ^>= 0.0
                      , tree-sitter-python
+                     , bytestring
   hs-source-dirs:      src
   default-language:    Haskell2010