diff --git a/pkgs/xo-gc.nix b/pkgs/xo-gc.nix
index 89d8d962..ea05a9b9 100644
--- a/pkgs/xo-gc.nix
+++ b/pkgs/xo-gc.nix
@@ -8,6 +8,7 @@
   sphinx, graphviz,
 
   # xo dependencies
+  xo-object2,
   xo-alloc2,
   xo-facet,
   xo-randomgen,
@@ -39,6 +40,7 @@ stdenv.mkDerivation (finalattrs:
       cmake catch2
       xo-cmake
       xo-randomgen
+      xo-object2
     ] ++ lib.optionals buildDocs [
       doxygen
       sphinx
diff --git a/pkgs/xo-object2.nix b/pkgs/xo-object2.nix
index b220bcd0..46c02a11 100644
--- a/pkgs/xo-object2.nix
+++ b/pkgs/xo-object2.nix
@@ -3,7 +3,6 @@
   lib, stdenv, cmake, catch2,
 
   # xo dependencies
-  xo-gc,
   xo-stringtable2,
   xo-reflect,
   xo-alloc2,
@@ -30,7 +29,6 @@ stdenv.mkDerivation (finalattrs:
       xo-cmake
     ];
     propagatedBuildInputs = [
-      xo-gc
       xo-reflect
       xo-alloc2
       xo-stringtable2