diff --git a/vscode-extensions/vscode-boot-properties/src/test/java/org/springframework/ide/vscode/boot/test/BootPropertiesLanguageServerTest.java b/vscode-extensions/vscode-boot-properties/src/test/java/org/springframework/ide/vscode/boot/test/BootPropertiesLanguageServerTest.java
index 801fb1e96..9d089be6c 100644
--- a/vscode-extensions/vscode-boot-properties/src/test/java/org/springframework/ide/vscode/boot/test/BootPropertiesLanguageServerTest.java
+++ b/vscode-extensions/vscode-boot-properties/src/test/java/org/springframework/ide/vscode/boot/test/BootPropertiesLanguageServerTest.java
@@ -22,6 +22,7 @@ import org.eclipse.lsp4j.TextDocumentSyncKind;
 import org.eclipse.lsp4j.services.LanguageServer;
 import org.junit.Test;
 import org.springframework.ide.vscode.boot.BootPropertiesLanguageServer;
+import org.springframework.ide.vscode.commons.languageserver.util.SimpleLanguageServer;
 import org.springframework.ide.vscode.languageserver.testharness.LanguageServerHarness;
 
 /**
@@ -37,7 +38,7 @@ public class BootPropertiesLanguageServerTest {
 	}
 
 	private LanguageServerHarness newHarness() throws Exception {
-		Callable<? extends LanguageServer> f = () -> new BootPropertiesLanguageServer((d) -> null, (d) -> null, (d) -> null);
+		Callable<? extends SimpleLanguageServer> f = () -> new BootPropertiesLanguageServer((d) -> null, (d) -> null, (d) -> null);
 		return new LanguageServerHarness(f);
 	}