diff --git a/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBean.java b/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBean.java
index f9d956fe..1b280b4d 100644
--- a/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBean.java
+++ b/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBean.java
@@ -1,4 +1,5 @@
 /**
+ * Copyright (c) 2013, 2022 Contributors to the Eclipse Foundation
  * Copyright © 2013 Antonin Stefanutti (antonin.stefanutti@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -25,12 +26,23 @@ public class GaugeMethodBean {
 
     private long gauge;
 
+    private long privateGauge;
+
     @Gauge(name = "gaugeMethod", unit = MetricUnits.NONE)
     public long getGauge() {
         return gauge;
     }
 
+    @Gauge(name = "privateGaugeMethod", unit = MetricUnits.NONE)
+    private long getPrivateGauge() {
+        return privateGauge;
+    }
+
     public void setGauge(long gauge) {
         this.gauge = gauge;
     }
+
+    public void setPrivateGauge(long gauge) {
+        this.privateGauge = gauge;
+    }
 }
diff --git a/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBeanTest.java b/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBeanTest.java
index db5e60c0..92f24c2e 100644
--- a/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBeanTest.java
+++ b/tck/api/src/main/java/org/eclipse/microprofile/metrics/tck/metrics/GaugeMethodBeanTest.java
@@ -1,4 +1,5 @@
 /**
+ * Copyright (c) 2013, 2022 Contributors to the Eclipse Foundation
  * Copyright © 2013 Antonin Stefanutti (antonin.stefanutti@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -41,8 +42,12 @@ public class GaugeMethodBeanTest {
 
     private final static String GAUGE_NAME = MetricRegistry.name(GaugeMethodBean.class, "gaugeMethod");
 
+    private final static String PRIVATE_GAUGE_NAME = MetricRegistry.name(GaugeMethodBean.class, "privateGaugeMethod");
+
     private static MetricID gaugeMID;
 
+    private static MetricID privateGaugeMID;
+
     @Deployment
     public static Archive<?> createTestArchive() {
         return ShrinkWrap.create(WebArchive.class)
@@ -63,6 +68,7 @@ public void instantiateApplicationScopedBeanAndTest() {
         // Let's trigger the instantiation of the application scoped bean explicitly
         // as only a proxy gets injected otherwise
         bean.getGauge();
+
         /*
          * The MetricID relies on the MicroProfile Config API. Running a managed arquillian container will result with
          * the MetricID being created in a client process that does not contain the MPConfig impl.
@@ -70,6 +76,8 @@ public void instantiateApplicationScopedBeanAndTest() {
          * This will cause client instantiated MetricIDs to throw an exception. (i.e the global MetricIDs)
          */
         gaugeMID = new MetricID(GAUGE_NAME);
+
+        privateGaugeMID = new MetricID(PRIVATE_GAUGE_NAME);
     }
 
     @Test
@@ -95,4 +103,28 @@ public void callGaugeAfterSetterCall() {
         bean.setGauge(value);
         assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(value)));
     }
+
+    @Test
+    @InSequence(3)
+    public void privateGaugeCalledWithDefaultValue() {
+        @SuppressWarnings("unchecked")
+        Gauge<Long> gauge = (Gauge<Long>) registry.getGauge(privateGaugeMID);
+        assertThat("Gauge is not registered correctly", gauge, notNullValue());
+
+        // Make sure that the gauge has the expected value
+        assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(0L)));
+    }
+
+    @Test
+    @InSequence(4)
+    public void callPrivateGaugeAfterSetterCall() {
+        @SuppressWarnings("unchecked")
+        Gauge<Long> gauge = (Gauge<Long>) registry.getGauge(privateGaugeMID);
+        assertThat("Gauge is not registered correctly", gauge, notNullValue());
+
+        // Call the setter method and assert the gauge is up-to-date
+        long value = Math.round(Math.random() * Long.MAX_VALUE);
+        bean.setPrivateGauge(value);
+        assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(value)));
+    }
 }