diff --git a/pkgs/development/tools/parsing/tree-sitter/default.nix b/pkgs/development/tools/parsing/tree-sitter/default.nix
index dfed3c91bc5e..1e9cf0f20a9b 100644
--- a/pkgs/development/tools/parsing/tree-sitter/default.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/default.nix
@@ -95,7 +95,7 @@ let
               (lib.strings.replaceStrings [ "-" ] [ "_" ]
                 (lib.strings.removePrefix "tree-sitter-"
                   (lib.strings.removeSuffix "-grammar" name)))
-              + stdenv.hostPlatform.extensions.sharedLibrary;
+              + ".so";
             path = "${drv}/parser";
           }
         )