diff --git a/src/main/java/net/hostsharing/hsadminng/config/CasAuthenticationFilter.java b/src/main/java/net/hostsharing/hsadminng/config/CasAuthenticationFilter.java
index 9bcf148d..650cad66 100644
--- a/src/main/java/net/hostsharing/hsadminng/config/CasAuthenticationFilter.java
+++ b/src/main/java/net/hostsharing/hsadminng/config/CasAuthenticationFilter.java
@@ -21,13 +21,10 @@ public class CasAuthenticationFilter extends OncePerRequestFilter {
     protected void doFilterInternal(
             HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) {
 
-        request.getInputStream();
-
         if (request.getHeader("authorization") != null) {
             final var authenticatedRequest = new AuthenticatedHttpServletRequestWrapper(request);
             final var currentSubject = authenticator.authenticate(request);
             authenticatedRequest.addHeader("current-subject", currentSubject);
-            authenticatedRequest.getInputStream();
             filterChain.doFilter(authenticatedRequest, response);
         } else {
             filterChain.doFilter(request, response);