diff --git a/src/main/java/stirling/software/SPDF/model/ApplicationProperties.java b/src/main/java/stirling/software/SPDF/model/ApplicationProperties.java
index 703b5ee6..fd7c278b 100644
--- a/src/main/java/stirling/software/SPDF/model/ApplicationProperties.java
+++ b/src/main/java/stirling/software/SPDF/model/ApplicationProperties.java
@@ -122,18 +122,19 @@ public class ApplicationProperties {
 
         @Getter
         @Setter
+        @ToString
         public static class SAML2 {
             private Boolean enabled = false;
             private Boolean autoCreateUser = false;
             private Boolean blockRegistration = false;
             private String registrationId = "stirling";
-            private String idpMetadataUri;
+            @ToString.Exclude private String idpMetadataUri;
             private String idpSingleLogoutUrl;
             private String idpSingleLoginUrl;
             private String idpIssuer;
             private String idpCert;
-            private String privateKey;
-            private String spCert;
+            @ToString.Exclude private String privateKey;
+            @ToString.Exclude private String spCert;
 
             public InputStream getIdpMetadataUri() throws IOException {
                 if (idpMetadataUri.startsWith("classpath:")) {