1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/science/math/faiss/default.nix b/nixpkgs/pkgs/development/libraries/science/math/faiss/default.nix
index 25ac539e05f2..25d6542f8da1 100644
--- a/nixpkgs/pkgs/development/libraries/science/math/faiss/default.nix
+++ b/nixpkgs/pkgs/development/libraries/science/math/faiss/default.nix
@@ -145,6 +145,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "A library for efficient similarity search and clustering of dense vectors by Facebook Research";
+    mainProgram = "demo_ivfpq_indexing";
     homepage = "https://github.com/facebookresearch/faiss";
     license = licenses.mit;
     platforms = platforms.unix;