diff --git a/compiler/GHC/Unit/Module/Env.hs-boot b/compiler/GHC/Unit/Module/Env.hs-boot
deleted file mode 100644
index 657f55490cfe90c0b9fffcc0e84ba7c4affbe5fa..0000000000000000000000000000000000000000
--- a/compiler/GHC/Unit/Module/Env.hs-boot
+++ /dev/null
@@ -1,6 +0,0 @@
-module GHC.Unit.Module.Env where
-
-import GhcPrelude ()
-import GHC.Types.Unique.FM
-
-type ModuleNameEnv elt = UniqFM elt