diff --git a/Dockerfile b/Dockerfile
index 1fc3ac4..7fbd568 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN mkdir out && \
     ninja
 
 FROM fedora:29
-RUN dnf install -y glib2 tor valgrind
+RUN dnf install -y glib2 tor valgrind nmap-ncat
 WORKDIR /home/donar
 RUN mkdir /home/donar/shared && mkdir /home/donar/res && chown -R 1000 /home/donar
 USER 1000