diff --git a/pronk.cabal b/pronk.cabal
index d94a96b..1e1ec6e 100644
--- a/pronk.cabal
+++ b/pronk.cabal
@@ -55,6 +55,7 @@ library
     criterion >= 0.6.0.0,
     deepseq,
     filepath,
+    ghc-prim >= 0.2.0.0,
     hashable >= 1.2.0.2,
     hastache,
     http-conduit >= 1.6,