diff --git a/crane.nix b/crane.nix
index f7abf6e..fba29a5 100644
--- a/crane.nix
+++ b/crane.nix
@@ -108,6 +108,7 @@ let
       license = licenses.asl20;
       maintainers = with maintainers; [ zhaofengli ];
       platforms = platforms.linux ++ platforms.darwin;
+      mainProgram = "attic";
     };
 
     passthru = {
@@ -147,6 +148,10 @@ let
 
     CARGO_PROFILE_RELEASE_LTO = "fat";
     CARGO_PROFILE_RELEASE_CODEGEN_UNITS = "1";
+
+    meta = {
+      mainProgram = "atticd";
+    };
   } // extraArgs);
 
   # Attic interacts with Nix directly and its tests require trusted-user access
diff --git a/package.nix b/package.nix
index e40c765..1614316 100644
--- a/package.nix
+++ b/package.nix
@@ -70,5 +70,6 @@ in rustPlatform.buildRustPackage rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ zhaofengli ];
     platforms = platforms.linux ++ platforms.darwin;
+    mainProgram = "attic";
   };
 }