diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizer.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizer.java
index 74831e9011..40af5d04e1 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizer.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/client/MetricsRestTemplateCustomizer.java
@@ -59,10 +59,13 @@ public class MetricsRestTemplateCustomizer implements RestTemplateCustomizer {
 		UriTemplateHandler templateHandler = restTemplate.getUriTemplateHandler();
 		templateHandler = this.interceptor.createUriTemplateHandler(templateHandler);
 		restTemplate.setUriTemplateHandler(templateHandler);
+		List<ClientHttpRequestInterceptor> existingInterceptors = restTemplate.getInterceptors();
+		if (!existingInterceptors.contains(this.interceptor)) {
 		List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>();
-		interceptors.add(this.interceptor);
-		interceptors.addAll(restTemplate.getInterceptors());
-		restTemplate.setInterceptors(interceptors);
+			interceptors.add(this.interceptor);
+			interceptors.addAll(existingInterceptors);
+			restTemplate.setInterceptors(interceptors);
+		}
 	}
 
 }