diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 7823b1c6e715..445056766058 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -919,7 +919,7 @@ let
           name = "vscode-markdownlint";
           publisher = "DavidAnson";
           version = "0.55.0";
-          sha256 = "sha256-slfHfRPcuRu+649n6kAr2bv9H6J+DvYVN/ysq1QpPQM=";
+          hash = "sha256-slfHfRPcuRu+649n6kAr2bv9H6J+DvYVN/ysq1QpPQM=";
         };
         meta = {
           changelog = "https://marketplace.visualstudio.com/items/DavidAnson.vscode-markdownlint/changelog";