1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/sympy/default.nix b/nixpkgs/pkgs/development/python-modules/sympy/default.nix
index cf250568b609..d2a10492153e 100644
--- a/nixpkgs/pkgs/development/python-modules/sympy/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/sympy/default.nix
@@ -29,6 +29,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A Python library for symbolic mathematics";
+    mainProgram = "isympy";
     homepage    = "https://www.sympy.org/";
     license     = licenses.bsd3;
     maintainers = with maintainers; [ lovek323 ] ++ teams.sage.members;