diff --git a/Dockerfile b/Dockerfile
index 2125dce..3b85605 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN apt-get update \
  && rm -rf /var/lib/apt/lists/*
 
 
-RUN mkdir /var/run/sshd
+RUN mkdir -p /var/run/sshd
 
 RUN useradd -m -s /bin/bash crime1
 RUN useradd -m -s /bin/bash crime2