diff --git a/tools_bin/ngcp-emergency-mode b/tools_bin/ngcp-emergency-mode
index 4f2571b910..fa462d9c1a 100755
--- a/tools_bin/ngcp-emergency-mode
+++ b/tools_bin/ngcp-emergency-mode
@@ -35,6 +35,7 @@ use URI;
 use NGCP::Panel::Utils::XMLDispatcher;
 use NGCP::API::Client;
 use Config::Simple;
+use JSON;
 use TryCatch;
 use Sys::Syslog qw(:standard :macros);
 use IO::Prompt::Tiny qw(prompt);