diff --git a/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/ConnectionStreamFactory.java b/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/ConnectionStreamFactory.java
index d1281d8405..d8e987f96e 100644
--- a/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/ConnectionStreamFactory.java
+++ b/org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/ConnectionStreamFactory.java
@@ -40,7 +40,7 @@
  */
 public class ConnectionStreamFactory {
 
-	interface StreamProvider {
+	protected interface StreamProvider {
 		InputStream getInputStream() throws IOException;
 
 		OutputStream getOutputStream() throws IOException;