diff --git a/src/Phi/Panel.hs b/lib/Phi/Panel.hs
similarity index 100%
rename from src/Phi/Panel.hs
rename to lib/Phi/Panel.hs
diff --git a/src/Phi/X11.hs b/lib/Phi/X11.hs
similarity index 100%
rename from src/Phi/X11.hs
rename to lib/Phi/X11.hs
diff --git a/phi.cabal b/phi.cabal
index e82b01e..96a5381 100644
--- a/phi.cabal
+++ b/phi.cabal
@@ -1,4 +1,4 @@
-cabal-version:       >= 1.2
+cabal-version:       >= 1.8
 name:                phi
 version:             0.1
 synopsis:            An X panel
@@ -12,10 +12,10 @@ build-type:          Simple
 
 library
   build-depends:     base >= 4, mtl, cairo, X11
-  exposed-modules:   Phi.Panel
-  hs-source-dirs:    src
+  exposed-modules:   Phi.Panel, Phi.X11
+  hs-source-dirs:    lib
 
 executable Phi
-  build-depends:       base >= 4
-  hs-source-dirs:      src
-  main-is:             Phi.hs
+  build-depends:     base >= 4, phi
+  hs-source-dirs:    src
+  main-is:           Phi.hs