diff --git a/src/codegen.cpp b/src/codegen.cpp
index d05080ee4216e9..73d2a28fa37f15 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -5170,7 +5170,24 @@ static Function* gen_cfun_wrapper(
         // add nest parameter (pointer to jl_value_t* data array) after sret arg
         assert(closure_types);
         std::vector<Type*> fargt_sig(sig.fargt_sig);
+
         fargt_sig.insert(fargt_sig.begin() + sig.sret, T_pprjlvalue);
+        // Shift LLVM attributes for parameters one to the right, as
+        // we are adding the extra nest parameter after sret arg.
+        // AttributeList has function attributes and return value
+        // attributes before the parameter attributes.
+        if (attributes.getNumAttrSets() > static_cast<unsigned>(2 + sig.sret)) {
+            AttrBuilder toShift;
+            // Skip past function and return and sret attributes to the first real parameter
+            for (auto it = attributes.index_begin() + 2 + sig.sret; it != attributes.index_end(); ++it) {
+                AttrBuilder toShiftTemp(attributes.getAttributes(it));
+                attributes = attributes.removeAttributes(jl_LLVMContext, it);
+                attributes = attributes.addAttributes(jl_LLVMContext, it, toShift);
+                toShift = std::move(toShiftTemp);
+            }
+            attributes = attributes.addAttributes(jl_LLVMContext, attributes.index_end(), toShift);
+        }
+
         functype = FunctionType::get(sig.sret ? T_void : sig.prt, fargt_sig, /*isVa*/false);
         attributes = attributes.addAttribute(jl_LLVMContext, 1 + sig.sret, Attribute::Nest);
     }
diff --git a/test/ccall.jl b/test/ccall.jl
index 02d005108459e7..01f0f4f651aa8a 100644
--- a/test/ccall.jl
+++ b/test/ccall.jl
@@ -982,6 +982,26 @@ for (t, v) in ((Complex{Int32}, :ci32), (Complex{Int64}, :ci64),
     end
 end
 
+
+#issue 40164
+@testset "llvm parameter attributes on cfunction closures" begin
+    struct Struct40164
+        x::Cdouble
+        y::Cdouble
+        z::Cdouble
+    end
+
+    function test_40164()
+        ret = Struct40164[]
+        f = x::Struct40164 -> (push!(ret, x); nothing)
+        f_c = @cfunction($f, Cvoid, (Struct40164,))
+        ccall(f_c.ptr, Ptr{Cvoid}, (Struct40164,), Struct40164(0, 1, 2))
+        ret
+    end
+
+    @test test_40164() == [Struct40164(0, 1, 2)]
+end
+
 else
 
 @test_broken "cfunction: no support for closures on this platform"