diff --git a/flake.nix b/flake.nix
index 97f320d9a2bb946e1bf771b05717cd4997e20eed..9edd3f8f9612afb46ef444e46deb83f2c3a6f8bd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,6 +41,7 @@
             name = "cabal-build-and-test";
             runtimeInputs = with pkgs; [
               pkg-config
+              gcc
               haskell.compiler.${ghcVersion}
               cabal-install
             ];