diff --git a/flake.nix b/flake.nix
index b14af4b..dcd3346 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,7 +11,7 @@
 
           verilator = import ./verilator.nix pkgs ;
 
-          vflags = ''-Wpedantic -Wwarn-lint -Wwarn-style -CFLAGS "-Wpedantic -std=c++20"'';
+          vflags = ''-Wpedantic -Wwarn-lint -Wwarn-style -Wno-PINCONNECTEMPTY -CFLAGS "-Wpedantic -std=c++20"'';
 
           verilate-src = cmd: ''
             cp -r ${./verilog-src} ./verilog-src