diff --git a/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java b/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java
index 41f3b6170d..4b5acbb599 100644
--- a/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java
+++ b/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverMeterRegistry.java
@@ -25,8 +25,8 @@
 import com.google.monitoring.v3.*;
 import com.google.protobuf.Timestamp;
 import io.micrometer.core.annotation.Incubating;
-import io.micrometer.core.instrument.*;
 import io.micrometer.core.instrument.Timer;
+import io.micrometer.core.instrument.*;
 import io.micrometer.core.instrument.config.MissingRequiredConfigurationException;
 import io.micrometer.core.instrument.distribution.CountAtBucket;
 import io.micrometer.core.instrument.distribution.DistributionStatisticConfig;
@@ -65,6 +65,7 @@
  */
 @Incubating(since = "1.1.0")
 public class StackdriverMeterRegistry extends StepMeterRegistry {
+
     private static final ThreadFactory DEFAULT_THREAD_FACTORY = new NamedThreadFactory("stackdriver-metrics-publisher");
 
     /**
@@ -122,7 +123,7 @@ public void start(ThreadFactory threadFactory) {
             } else {
                 try {
                     this.client = MetricServiceClient.create(metricServiceSettings);
-                    logger.info("publishing metrics to stackdriver every " + TimeUtils.format(config.step()));
+                    logger.info("publishing metrics to stackdriver every {}", TimeUtils.format(config.step()));
                     super.start(threadFactory);
                 } catch (Exception e) {
                     logger.error("unable to create stackdriver client", e);
diff --git a/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverNamingConvention.java b/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverNamingConvention.java
index 108b690ee4..58ef99ce20 100644
--- a/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverNamingConvention.java
+++ b/implementations/micrometer-registry-stackdriver/src/main/java/io/micrometer/stackdriver/StackdriverNamingConvention.java
@@ -15,26 +15,31 @@
  */
 package io.micrometer.stackdriver;
 
+import java.util.regex.Pattern;
+
 import io.micrometer.core.instrument.Meter;
 import io.micrometer.core.instrument.config.NamingConvention;
 import io.micrometer.core.instrument.util.StringUtils;
 import io.micrometer.core.lang.Nullable;
 
-import java.util.regex.Pattern;
-
 /**
  * {@link NamingConvention} for Stackdriver.
- *
+ * 
  * Names are mapped to Stackdriver's metric type names and tag keys are mapped to its metric label names.
  *
- * @see <a href="https://cloud.google.com/monitoring/api/v3/metrics-details">"Naming rules" section on Stackdriver's reference documentation</a>
  *
+ * @see <a href="https://cloud.google.com/monitoring/api/v3/metrics-details">"Naming rules" section on Stackdriver's reference documentation</a>
+ * and
+ * @see <a href="https://cloud.google.com/monitoring/quotas#custom_metrics_quotas">"Custom Metrics" on the Stackdriver's Quotas and limits reference documentation</a>
+ * 
  * @author Jon Schneider
  * @since 1.1.0
  */
 public class StackdriverNamingConvention implements NamingConvention {
+
     private static final int MAX_NAME_LENGTH = 200;
     private static final int MAX_TAG_KEY_LENGTH = 100;
+    private static final int MAX_TAG_VALUE_LENGTH = 1024;
     private static final Pattern NAME_BLACKLIST = Pattern.compile("[^\\w./_]");
     private static final Pattern TAG_KEY_BLACKLIST = Pattern.compile("[^\\w_]");
     private final NamingConvention nameDelegate;
@@ -62,4 +67,9 @@ private String sanitize(String value, Pattern blacklist, int maxLength) {
     public String tagKey(String key) {
         return sanitize(tagKeyDelegate.tagKey(key), TAG_KEY_BLACKLIST, MAX_TAG_KEY_LENGTH);
     }
+
+    @Override
+    public String tagValue(String value) {
+        return StringUtils.truncate(value, MAX_TAG_VALUE_LENGTH);
+    }
 }
diff --git a/implementations/micrometer-registry-stackdriver/src/test/java/io/micrometer/stackdriver/StackdriverNamingConventionTest.java b/implementations/micrometer-registry-stackdriver/src/test/java/io/micrometer/stackdriver/StackdriverNamingConventionTest.java
index 882dbc3a75..9c7054d835 100644
--- a/implementations/micrometer-registry-stackdriver/src/test/java/io/micrometer/stackdriver/StackdriverNamingConventionTest.java
+++ b/implementations/micrometer-registry-stackdriver/src/test/java/io/micrometer/stackdriver/StackdriverNamingConventionTest.java
@@ -44,4 +44,10 @@ void tagValue() {
         assertThat(namingConvention.tagValue("my.tag.value")).isEqualTo("my.tag.value");
     }
 
+    @Test
+    void tooLongTagValue() {
+        assertThat(namingConvention.tagValue("thisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolong"))
+                .isEqualTo("thisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistoolongthisistool");
+    }
+
 }