diff --git a/src/Convert/AlwaysKW.hs b/src/Convert/AlwaysKW.hs
index a3cf0de..62488ce 100644
--- a/src/Convert/AlwaysKW.hs
+++ b/src/Convert/AlwaysKW.hs
@@ -37,7 +37,6 @@ data Kind
     = Const Expr
     | Var
     | Proc [Expr] [PortDir]
-    deriving Eq
 
 scoper :: ModuleItem -> SC ModuleItem
 scoper = scopeModuleItem traverseDecl return traverseGenItem traverseStmt