diff --git a/pkgs/servers/monitoring/grafana/plugins/grafana-piechart-panel/default.nix b/pkgs/servers/monitoring/grafana/plugins/grafana-piechart-panel/default.nix
index 2c44d3a4a062..7b8c210909b3 100644
--- a/pkgs/servers/monitoring/grafana/plugins/grafana-piechart-panel/default.nix
+++ b/pkgs/servers/monitoring/grafana/plugins/grafana-piechart-panel/default.nix
@@ -6,7 +6,7 @@ grafanaPlugin rec {
   zipHash = "sha256-64K/efoBKuBFp8Jw79hTdMyTurTZsL0qfgPDcUWz2jg=";
   meta = with lib; {
     description = "Pie chart panel for Grafana";
-    license = licenses.asl20;
+    license = licenses.mit;
     maintainers = with maintainers; [ lukegb ];
     platforms = platforms.unix;
   };