diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51803b05..e1cde265 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,7 +73,7 @@ add_subdirectory(xo-ordinaltree)
 add_subdirectory(xo-flatstring)
 add_subdirectory(xo-pyutil)
 add_subdirectory(xo-reflectutil)
-#add_subdirectory(xo-reflect)
+add_subdirectory(xo-reflect)
 #add_subdirectory(xo-pyreflect)
 #add_subdirectory(xo-ratio)
 #add_subdirectory(xo-unit)
diff --git a/default.nix b/default.nix
index 031260eb..2fcd82b6 100644
--- a/default.nix
+++ b/default.nix
@@ -46,7 +46,7 @@ let
           xo-flatstring     = self.callPackage pkgs/xo-flatstring.nix     {};
           xo-pyutil         = self.callPackage pkgs/xo-pyutil.nix         {};
           xo-reflectutil    = self.callPackage pkgs/xo-reflectutil.nix    {};
-#          xo-reflect        = self.callPackage pkgs/xo-reflect.nix        {};
+          xo-reflect        = self.callPackage pkgs/xo-reflect.nix        {};
 #          xo-pyreflect      = self.callPackage pkgs/xo-pyreflect.nix      {};
 #          xo-ratio          = self.callPackage pkgs/xo-ratio.nix          {};
 #          xo-unit           = self.callPackage pkgs/xo-unit.nix           {};
diff --git a/pkgs/xo-reflect.nix b/pkgs/xo-reflect.nix
new file mode 100644
index 00000000..d332c13a
--- /dev/null
+++ b/pkgs/xo-reflect.nix
@@ -0,0 +1,19 @@
+{
+  # nixpkgs dependencies
+  stdenv, cmake, catch2,
+
+  # xo dependencies
+  xo-cmake, xo-refcnt, xo-subsys
+} :
+
+stdenv.mkDerivation (finalattrs:
+  {
+    name = "xo-reflect";
+
+    src = ../xo-reflect;
+
+    cmakeFlags = ["-DCMAKE_MODULE_PATH=${xo-cmake}/share/cmake"];
+    doCheck = true;
+    nativeBuildInputs = [ cmake catch2 xo-cmake ];
+    propagatedBuildInputs = [ xo-subsys xo-refcnt ];
+  })
diff --git a/pkgs/xo-userenv.nix b/pkgs/xo-userenv.nix
index 99e8c2ad..f6b1dba8 100644
--- a/pkgs/xo-userenv.nix
+++ b/pkgs/xo-userenv.nix
@@ -31,10 +31,10 @@
   xo-flatstring,
   xo-pyutil,
   xo-reflectutil,
+  xo-reflect,
 #  xo-ratio,
 #  xo-unit,
 #  xo-pyunit,
-#  xo-reflect,
 #  xo-pyreflect,
 #  xo-printjson,
 #  xo-pyprintjson,
@@ -66,7 +66,7 @@ buildEnv {
             xo-flatstring
             xo-pyutil
             xo-reflectutil
-#            xo-reflect
+            xo-reflect
 #            xo-pyreflect
 #            xo-ratio
 #            xo-unit