diff --git a/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountToken.java b/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountToken.java
index eba40ecd1a4db..0157de7dde954 100644
--- a/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountToken.java
+++ b/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountToken.java
@@ -130,6 +130,11 @@ public void close() {
         secret.close();
     }
 
+    @Override
+    public String toString() {
+        return getQualifiedName();
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o)
diff --git a/x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountTokenTests.java b/x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountTokenTests.java
index f98b3ff9e0460..a0d63abcc5f08 100644
--- a/x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountTokenTests.java
+++ b/x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/service/ServiceAccountTokenTests.java
@@ -33,7 +33,7 @@ public class ServiceAccountTokenTests extends ESTestCase {
     );
 
     private static final Set<Character> INVALID_TOKEN_NAME_CHARS = Set.of(
-        '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '.', '/', ':', ';', '<', '=', '>', '?', '@', '[',
+        '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '.', '/', ';', '<', '=', '>', '?', '@', '[',
         '\\', ']', '^', '`', '{', '|', '}', '~', ' ', '\t', '\n', '\r');
 
     public void testIsValidTokenName() {