diff --git a/org.eclipse.xtext.ide.tests/src/org/eclipse/xtext/ide/tests/server/WorkspaceFoldersTest.java b/org.eclipse.xtext.ide.tests/src/org/eclipse/xtext/ide/tests/server/WorkspaceFoldersTest.java
index d2707338190..fc1ef8428c0 100644
--- a/org.eclipse.xtext.ide.tests/src/org/eclipse/xtext/ide/tests/server/WorkspaceFoldersTest.java
+++ b/org.eclipse.xtext.ide.tests/src/org/eclipse/xtext/ide/tests/server/WorkspaceFoldersTest.java
@@ -14,7 +14,6 @@
 import java.util.concurrent.CompletableFuture;
 
 import org.eclipse.lsp4j.ClientCapabilities;
-import org.eclipse.lsp4j.DidChangeNotebookDocumentParams;
 import org.eclipse.lsp4j.DidChangeWorkspaceFoldersParams;
 import org.eclipse.lsp4j.InitializeParams;
 import org.eclipse.lsp4j.InitializeResult;
@@ -80,7 +79,6 @@ public void testInitializeWithWorkspaceFolders() throws Exception {
 							new WorkspaceFolder(uriExtensions.toUriString(rootFolder2.toURI()), "root2")));
 		});
 		Assert.assertEquals(true, capabilities.getCapabilities().getWorkspace().getWorkspaceFolders().getSupported());
-		;
 		Assert.assertEquals(2, getDiagnostics().size());
 		Assert.assertEquals(1, getDiagnostics().get(twoUri).size());
 		withBuild(() -> {
diff --git a/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LanguageServerImpl.java b/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LanguageServerImpl.java
index ef45b51dd71..06c75cf7496 100644
--- a/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LanguageServerImpl.java
+++ b/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LanguageServerImpl.java
@@ -231,7 +231,7 @@ public CompletableFuture<InitializeResult> initialize(InitializeParams params) {
 		result.setCapabilities(createServerCapabilities(params));
 		access.addBuildListener(this);
 		return requestManager.runWrite(() -> {
-			if (isWorkspaceFoldersSupported() && workspaceManager.isSupportsWorkspaceFolders()) {
+			if (clientSupportsWorkspaceFolders() && workspaceManager.isSupportsWorkspaceFolders()) {
 				List<WorkspaceFolder> workspaceFolders = params.getWorkspaceFolders();
 				if (workspaceFolders == null)
 					workspaceFolders = Collections.emptyList();
@@ -244,7 +244,7 @@ public CompletableFuture<InitializeResult> initialize(InitializeParams params) {
 		}, (cancelIndicator, it) -> it).thenApply(it -> initializeResult = it);
 	}
 
-	protected boolean isWorkspaceFoldersSupported() {
+	protected boolean clientSupportsWorkspaceFolders() {
 		return this.initializeParams.getCapabilities() != null 
 				&& this.initializeParams.getCapabilities().getWorkspace() != null 
 				&& this.initializeParams.getCapabilities().getWorkspace().getWorkspaceFolders() == Boolean.TRUE;
diff --git a/org.eclipse.xtext.testing/src/org/eclipse/xtext/testing/AbstractLanguageServerTest.xtend b/org.eclipse.xtext.testing/src/org/eclipse/xtext/testing/AbstractLanguageServerTest.xtend
index f8a2838eee2..8a4a2da8c37 100644
--- a/org.eclipse.xtext.testing/src/org/eclipse/xtext/testing/AbstractLanguageServerTest.xtend
+++ b/org.eclipse.xtext.testing/src/org/eclipse/xtext/testing/AbstractLanguageServerTest.xtend
@@ -229,7 +229,6 @@ abstract class AbstractLanguageServerTest implements Endpoint {
 				new WorkspaceFolder(root.toURI.normalize.toUriString, '')
 			]
 		]
-		initializer?.apply(params)
 		if (!useRootPath) {
 			if (params.capabilities === null) {
 				params.capabilities = new ClientCapabilities
@@ -239,6 +238,7 @@ abstract class AbstractLanguageServerTest implements Endpoint {
 			}
 			params.capabilities.workspace.workspaceFolders = true
 		}
+		initializer?.apply(params)
 		hierarchicalDocumentSymbolSupport = params.capabilities?.textDocument?.documentSymbol?.
 			hierarchicalDocumentSymbolSupport ?: false;
 		val result = languageServer.initialize(params).get