diff --git a/installation.sh b/installation.sh
index 7d478af..c1b2636 100644
--- a/installation.sh
+++ b/installation.sh
@@ -333,8 +333,8 @@ EOF
         
         # Validate the temporary file
         if sudo visudo -c -f /tmp/sudoers_additions; then
-            # Append to sudoers if valid
-            sudo cat /tmp/sudoers_additions >> "$SUDOERS_FILE"
+            # Append to sudoers if valid using tee with sudo
+            cat /tmp/sudoers_additions | sudo EDITOR='tee -a' visudo >/dev/null 2>&1
             print_success "Sudo authorization added"
         else
             print_error "Failed to add sudo rules - syntax validation failed"