diff --git a/extensions/guacamole-auth-saml/src/main/java/org/apache/guacamole/auth/saml/AuthenticationProviderService.java b/extensions/guacamole-auth-saml/src/main/java/org/apache/guacamole/auth/saml/AuthenticationProviderService.java
index e819142d5..656ef5f9a 100644
--- a/extensions/guacamole-auth-saml/src/main/java/org/apache/guacamole/auth/saml/AuthenticationProviderService.java
+++ b/extensions/guacamole-auth-saml/src/main/java/org/apache/guacamole/auth/saml/AuthenticationProviderService.java
@@ -100,7 +100,7 @@ public class AuthenticationProviderService {
         if (request != null) {
             
             // Look for the SAML Response parameter.
-            String responseHash = Util.urlDecoder(request.getParameter("responseHash"));
+            String responseHash = request.getParameter("responseHash");
 
             if (responseHash != null) {