diff --git a/okhttp/src/main/java/okhttp3/internal/ws/RealWebSocket.java b/okhttp/src/main/java/okhttp3/internal/ws/RealWebSocket.java
index 9ac84f0e298a..b05d9b77e540 100644
--- a/okhttp/src/main/java/okhttp3/internal/ws/RealWebSocket.java
+++ b/okhttp/src/main/java/okhttp3/internal/ws/RealWebSocket.java
@@ -495,12 +495,15 @@ boolean writeOneFrame() throws IOException {
   }
 
   private final class PingRunnable implements Runnable {
+    PingRunnable() {
+    }
+
     @Override public void run() {
       writePingFrame();
     }
   }
 
-  private void writePingFrame() {
+  void writePingFrame() {
     WebSocketWriter writer;
     synchronized (this) {
       if (failed) return;