diff --git a/instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/builder/internal/DefaultHttpClientTelemetryBuilder.java b/instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/builder/internal/DefaultHttpClientTelemetryBuilder.java
index 3921a2e1cc4e..492ec455fa8b 100644
--- a/instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/builder/internal/DefaultHttpClientTelemetryBuilder.java
+++ b/instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/builder/internal/DefaultHttpClientTelemetryBuilder.java
@@ -31,6 +31,10 @@
 import java.util.function.Consumer;
 import java.util.function.Function;
 
+/**
+ * This class is internal and is hence not for public use. Its APIs are unstable and can change at
+ * any time.
+ */
 public final class DefaultHttpClientTelemetryBuilder<REQUEST, RESPONSE> {
 
   private final String instrumentationName;