diff --git a/pkgs/applications/networking/browsers/floorp/default.nix b/pkgs/applications/networking/browsers/floorp/default.nix
index 4b8757eb662e..758730bfc407 100644
--- a/pkgs/applications/networking/browsers/floorp/default.nix
+++ b/pkgs/applications/networking/browsers/floorp/default.nix
@@ -41,6 +41,7 @@
                                            # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
     maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
     license = lib.licenses.mpl20;
+    mainProgram = "floorp";
   };
   tests = [ nixosTests.floorp ];
 }).override {