diff --git a/src/Lion/Alu.hs b/lib/Lion/Alu.hs
similarity index 100%
rename from src/Lion/Alu.hs
rename to lib/Lion/Alu.hs
diff --git a/src/Lion/Core.hs b/lib/Lion/Core.hs
similarity index 100%
rename from src/Lion/Core.hs
rename to lib/Lion/Core.hs
diff --git a/src/Lion/Instruction.hs b/lib/Lion/Instruction.hs
similarity index 100%
rename from src/Lion/Instruction.hs
rename to lib/Lion/Instruction.hs
diff --git a/src/Lion/Pipe.hs b/lib/Lion/Pipe.hs
similarity index 100%
rename from src/Lion/Pipe.hs
rename to lib/Lion/Pipe.hs
diff --git a/src/Lion/Rvfi.hs b/lib/Lion/Rvfi.hs
similarity index 100%
rename from src/Lion/Rvfi.hs
rename to lib/Lion/Rvfi.hs
diff --git a/lion.cabal b/lion.cabal
index 6a0bbf2..608fa6a 100644
--- a/lion.cabal
+++ b/lion.cabal
@@ -19,12 +19,12 @@ source-repository head
   location: https://github.com/standardsemiconductor/lion
 
 library
-  exposed-modules: Lion.Core
-                 , Lion.Rvfi
-  other-modules:   Lion.Alu
-                 , Lion.Instruction
-                 , Lion.Pipe
-  hs-source-dirs: src
+  exposed-modules:  Lion.Core
+                  , Lion.Rvfi
+  other-modules:    Lion.Alu
+                  , Lion.Instruction
+                  , Lion.Pipe
+  hs-source-dirs:   lib
   default-language: Haskell2010
   build-depends:
     base           >= 4.13  && < 4.21,