diff --git a/pandoc.cabal b/pandoc.cabal
index b4c74125f..139e576ec 100644
--- a/pandoc.cabal
+++ b/pandoc.cabal
@@ -344,12 +344,12 @@ Executable pandoc
   else
     Build-depends: base >= 3 && < 4
   if impl(ghc >= 7.0.1)
-    Ghc-Options:   -O2 -rtsopts -threaded -Wall -fno-warn-unused-do-bind -dno-debug-output
+    Ghc-Options:   -O2 -rtsopts -Wall -fno-warn-unused-do-bind -dno-debug-output
   else
     if impl(ghc >= 6.12)
-      Ghc-Options:   -O2 -Wall -threaded -fno-warn-unused-do-bind -dno-debug-output
+      Ghc-Options:   -O2 -Wall -fno-warn-unused-do-bind -dno-debug-output
     else
-      Ghc-Options:   -O2 -Wall -threaded
+      Ghc-Options:   -O2 -Wall
   if impl(ghc >= 7.0.1)
     Ghc-Prof-Options: -auto-all -caf-all -rtsopts
   else
@@ -411,12 +411,12 @@ Executable test-pandoc
   else
     Build-depends: base >= 3 && < 4
   if impl(ghc >= 7.0.1)
-    Ghc-Options:   -O2 -rtsopts -threaded -Wall -fno-warn-unused-do-bind -dno-debug-output
+    Ghc-Options:   -O2 -rtsopts -Wall -fno-warn-unused-do-bind -dno-debug-output
   else
     if impl(ghc >= 6.12)
-      Ghc-Options:   -O2 -Wall -threaded -fno-warn-unused-do-bind -dno-debug-output
+      Ghc-Options:   -O2 -Wall -fno-warn-unused-do-bind -dno-debug-output
     else
-      Ghc-Options:   -O2 -Wall -threaded
+      Ghc-Options:   -O2 -Wall
   if impl(ghc >= 7.0.1)
     Ghc-Prof-Options: -auto-all -caf-all -rtsopts
   else