diff --git a/nodered/Dockerfile b/nodered/Dockerfile
index 6cd909c..711b5d3 100644
--- a/nodered/Dockerfile
+++ b/nodered/Dockerfile
@@ -3,7 +3,7 @@ FROM nodered/node-red:1.1.3-12
 USER root
 
 RUN apk update && apk upgrade && \
-    apk --no-cache add perl libpcap libpcap-dev bluez iputils wget && \
+    apk --no-cache add perl libpcap libpcap-dev bluez tcpdump iputils wget && \
     apk --no-cache add -X http://dl-cdn.alpinelinux.org/alpine/edge/main sudo && \
     apk --no-cache add -X http://dl-cdn.alpinelinux.org/alpine/edge/testing arp-scan