diff --git a/pkgs/applications/window-managers/i3/workstyle.nix b/pkgs/applications/window-managers/i3/workstyle.nix
index 5bbac8a3c65d..b546a8af5e9d 100644
--- a/pkgs/applications/window-managers/i3/workstyle.nix
+++ b/pkgs/applications/window-managers/i3/workstyle.nix
@@ -28,5 +28,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/pierrechevalier83/workstyle";
     license = licenses.mit;
     maintainers = with maintainers; [ FlorianFranzen ];
+    mainProgram = "workstyle";
   };
 }
diff --git a/pkgs/development/libraries/dconf/default.nix b/pkgs/development/libraries/dconf/default.nix
index e4333f4c2800..1516e9caef09 100644
--- a/pkgs/development/libraries/dconf/default.nix
+++ b/pkgs/development/libraries/dconf/default.nix
@@ -76,5 +76,6 @@ stdenv.mkDerivation rec {
     license = licenses.lgpl21Plus;
     platforms = platforms.unix;
     maintainers = teams.gnome.members;
+    mainProgram = "dconf";
   };
 }
diff --git a/pkgs/development/tools/language-servers/rnix-lsp/default.nix b/pkgs/development/tools/language-servers/rnix-lsp/default.nix
index c7ab04d7cdcf..41b50afb01d9 100644
--- a/pkgs/development/tools/language-servers/rnix-lsp/default.nix
+++ b/pkgs/development/tools/language-servers/rnix-lsp/default.nix
@@ -19,5 +19,6 @@ rustPlatform.buildRustPackage rec {
     description = "A work-in-progress language server for Nix, with syntax checking and basic completion";
     license = licenses.mit;
     maintainers = with maintainers; [ ];
+    mainProgram = "rnix-lsp";
   };
 }
diff --git a/pkgs/development/tools/marksman/default.nix b/pkgs/development/tools/marksman/default.nix
index 236f19b6989c..497456c33201 100644
--- a/pkgs/development/tools/marksman/default.nix
+++ b/pkgs/development/tools/marksman/default.nix
@@ -54,5 +54,6 @@ buildDotnetModule rec {
     license = licenses.mit;
     maintainers = with maintainers; [ stasjok plusgut ];
     platforms = dotnet-sdk.meta.platforms;
+    mainProgram = "marksman";
   };
 }
diff --git a/pkgs/os-specific/linux/macchanger/default.nix b/pkgs/os-specific/linux/macchanger/default.nix
index c862fd4e1675..e998bfad9361 100644
--- a/pkgs/os-specific/linux/macchanger/default.nix
+++ b/pkgs/os-specific/linux/macchanger/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     homepage = "https://github.com/alobbs/macchanger";
     platforms = platforms.linux;
+    mainProgram = "macchanger";
   };
 }