diff --git a/framework/src/main/java/de/hsadmin/login/CASTicketValidator.java b/framework/src/main/java/de/hsadmin/login/CASTicketValidator.java
index 40337b9..0fb3464 100644
--- a/framework/src/main/java/de/hsadmin/login/CASTicketValidator.java
+++ b/framework/src/main/java/de/hsadmin/login/CASTicketValidator.java
@@ -38,6 +38,7 @@ public class CASTicketValidator implements TicketValidator {
 			while (nextLine != null) {
 				if (nextLine.contains("<cas:user>")) {
 					String user = extractUser(nextLine);
+					reader.close();
 					inputStream.close();
 					return user;
 				}