diff --git a/pkgs/applications/office/activitywatch/default.nix b/pkgs/applications/office/activitywatch/default.nix
index f07a1e9b561d..e488363c2012 100644
--- a/pkgs/applications/office/activitywatch/default.nix
+++ b/pkgs/applications/office/activitywatch/default.nix
@@ -55,6 +55,7 @@ rec {
       description = "Watches keyboard and mouse activity to determine if you are AFK or not (for use with ActivityWatch)";
       homepage = "https://github.com/ActivityWatch/aw-watcher-afk";
       maintainers = with maintainers; [ huantian ];
+      mainProgram = "aw-watcher-afk";
       license = licenses.mpl20;
     };
   };
@@ -83,6 +84,7 @@ rec {
       description = "Cross-platform window watcher (for use with ActivityWatch)";
       homepage = "https://github.com/ActivityWatch/aw-watcher-window";
       maintainers = with maintainers; [ huantian ];
+      mainProgram = "aw-watcher-window";
       license = licenses.mpl20;
       badPlatforms = lib.platforms.darwin; # requires pyobjc-framework
     };
@@ -141,6 +143,7 @@ rec {
       description = "Tray icon that manages ActivityWatch processes, built with Qt";
       homepage = "https://github.com/ActivityWatch/aw-qt";
       maintainers = with maintainers; [ huantian ];
+      mainProgram = "aw-qt";
       license = licenses.mpl20;
       badPlatforms = lib.platforms.darwin; # requires pyobjc-framework
     };
@@ -170,6 +173,7 @@ rec {
       description = "Desktop notification service for ActivityWatch";
       homepage = "https://github.com/ActivityWatch/aw-notify";
       maintainers = with maintainers; [ huantian ];
+      mainProgram = "aw-notify";
       license = licenses.mpl20;
     };
   };