diff --git a/mlir/include/mlir/Tools/lsp-server-support/Protocol.h b/mlir/include/mlir/Tools/lsp-server-support/Protocol.h
index 5d2eb01a523a7..cc06dbfedb42a 100644
--- a/mlir/include/mlir/Tools/lsp-server-support/Protocol.h
+++ b/mlir/include/mlir/Tools/lsp-server-support/Protocol.h
@@ -158,6 +158,12 @@ struct ClientCapabilities {
   /// Client supports CodeAction return value for textDocument/codeAction.
   /// textDocument.codeAction.codeActionLiteralSupport.
   bool codeActionStructure = false;
+
+  /// Client supports server-initiated progress via the
+  /// window/workDoneProgress/create method.
+  ///
+  /// window.workDoneProgress
+  bool workDoneProgress = false;
 };
 
 /// Add support for JSON serialization.
diff --git a/mlir/lib/Tools/lsp-server-support/Protocol.cpp b/mlir/lib/Tools/lsp-server-support/Protocol.cpp
index e4eb2518e079e..0054dc37b39cb 100644
--- a/mlir/lib/Tools/lsp-server-support/Protocol.cpp
+++ b/mlir/lib/Tools/lsp-server-support/Protocol.cpp
@@ -289,6 +289,11 @@ bool mlir::lsp::fromJSON(const llvm::json::Value &value,
       if (codeAction->getObject("codeActionLiteralSupport"))
         result.codeActionStructure = true;
     }
+    if (auto *window = textDocument->getObject("window")) {
+      if (std::optional<bool> workDoneProgressSupport =
+              window->getBoolean("workDoneProgress"))
+        result.workDoneProgress = *workDoneProgressSupport;
+    }
   }
   return true;
 }