diff --git a/pkgs/tools/admin/awsume/default.nix b/pkgs/tools/admin/awsume/default.nix
index a6ee9f326c1d..ff83b6b6cf28 100644
--- a/pkgs/tools/admin/awsume/default.nix
+++ b/pkgs/tools/admin/awsume/default.nix
@@ -54,6 +54,7 @@ buildPythonApplication rec {
     description = "Utility for easily assuming AWS IAM roles from the command line";
     homepage = "https://github.com/trek10inc/awsume";
     license = [ licenses.mit ];
+    mainProgram = "awsume";
     maintainers = [ maintainers.nilp0inter ];
   };
 }