diff --git a/pkgs/development/interpreters/bqn/cbqn/default.nix b/pkgs/development/interpreters/bqn/cbqn/default.nix
index 4f450938f9a0..45a4df0278b2 100644
--- a/pkgs/development/interpreters/bqn/cbqn/default.nix
+++ b/pkgs/development/interpreters/bqn/cbqn/default.nix
@@ -63,6 +63,7 @@ stdenv.mkDerivation {
 
   dontConfigure = true;
 
+  doCheck = true;
   doInstallCheck = true;
 
   strictDeps = true;
@@ -94,6 +95,12 @@ stdenv.mkDerivation {
       cp -r ${sources.replxx.src}/* build/replxxLocal/
     '';
 
+  # Only uses in tree BQN executable, so doesn't make sense in installCheckPhase
+  checkFlags = [
+    "-C"
+    "test/ffi"
+  ];
+
   installPhase =
     ''
       runHook preInstall