diff --git a/pkgs/ovni/default.nix b/pkgs/ovni/default.nix
index 882da8d..d4ab78c 100644
--- a/pkgs/ovni/default.nix
+++ b/pkgs/ovni/default.nix
@@ -41,6 +41,10 @@ in
     buildInputs = [ cmake mpi ];
     cmakeBuildType = if (enableDebug) then "Debug" else "Release";
     cmakeFlags = [ "-DOVNI_GIT_COMMIT=${src.shortRev}" ];
+    buildFlags = [ "VERBOSE=1" ];
+    preCheck = ''
+      export CTEST_OUTPUT_ON_FAILURE=1
+    '';
     dontStrip = true;
     doCheck = true;
     checkTarget = "test";