diff --git a/miso.cabal b/miso.cabal
index d7fc9c28..98f5b854 100644
--- a/miso.cabal
+++ b/miso.cabal
@@ -182,8 +182,6 @@ library
         jsbits/delegate.js
         jsbits/isomorphic.js
         jsbits/util.js
-    hs-source-dirs:
-      frontend-src
     build-depends:
       containers,
       scientific,
@@ -193,8 +191,6 @@ library
   else
     build-depends:
       vector
-    hs-source-dirs:
-      backend-src
   if impl(ghcjs)
     hs-source-dirs:
       ghcjs-src