diff --git a/authorize-server.sh b/authorize-server.sh
index 0635495..567ee3a 100644
--- a/authorize-server.sh
+++ b/authorize-server.sh
@@ -3,7 +3,7 @@
 # Read the server list from the specified file
 SERVER_LIST_FILE="servers.conf"
 SERVER_LIST=()
-while IFS= read -r SERVER || [[ -n "$SERVER" ]]; do
+while IFS= read -r SERVER || [ -n "$SERVER" ]; do
   SERVER_LIST+=("$SERVER")
 done < "$SERVER_LIST_FILE"