diff --git a/flake.nix b/flake.nix
index 8b43652c..650dade7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -49,7 +49,6 @@
             cmake
             openocd
             screen
-            verilator
             # Needed to compile verilator generated files
             gcc
 
@@ -66,6 +65,7 @@
           ++ (with lowrisc-nix.packages.${system}; [
             spike-ibex-cosim
             lowrisc-toolchain-gcc-rv32imcb
+            verilator_ot
           ]);
         shellHook = ''
           # FIXME This works on Ubuntu, may not on other distros. FIXME