diff --git a/core/src/main/java/org/apache/struts2/interceptor/csp/DefaultCspSettings.java b/core/src/main/java/org/apache/struts2/interceptor/csp/DefaultCspSettings.java
index 51c76cfa8..b245ab352 100644
--- a/core/src/main/java/org/apache/struts2/interceptor/csp/DefaultCspSettings.java
+++ b/core/src/main/java/org/apache/struts2/interceptor/csp/DefaultCspSettings.java
@@ -134,7 +134,7 @@ public class DefaultCspSettings implements CspSettings {
     public String toString() {
         return "DefaultCspSettings{" +
             "reportUri='" + reportUri + '\'' +
-            "reportTo='" + reportTo + '\'' +
+            ", reportTo='" + reportTo + '\'' +
             ", cspHeader='" + cspHeader + '\'' +
             '}';
     }