diff --git a/pkgs/by-name/sc/scid-vs-pc/package.nix b/pkgs/by-name/sc/scid-vs-pc/package.nix
index 13853d0f09a6..78d96761773f 100644
--- a/pkgs/by-name/sc/scid-vs-pc/package.nix
+++ b/pkgs/by-name/sc/scid-vs-pc/package.nix
@@ -64,6 +64,7 @@ tcl.mkTclDerivation rec {
     description = "Chess database with play and training functionality";
     homepage = "https://scidvspc.sourceforge.net/";
     license = lib.licenses.gpl2Only;
+    mainProgram = "scid";
     maintainers = [ maintainers.paraseba ];
     platforms = lib.platforms.linux;
   };