diff --git a/src/IR/IR.jl b/src/IR/IR.jl
index 21f4f7ff..8d7f819d 100644
--- a/src/IR/IR.jl
+++ b/src/IR/IR.jl
@@ -397,7 +397,7 @@ function Attribute(value::Int, type::MLIRType)
         API.mlirIntegerAttrGet(type, value)
     )
 end
-function Attribute(value::Bool, ::MLIRType=nothing)
+function Attribute(value::Bool)
     Attribute(
         API.mlirBoolAttrGet(context(), value)
     )