diff --git a/Dockerfile b/Dockerfile
index 88b9173..7bda5eb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,11 +9,9 @@ RUN apt-get update && \
     apt-get install -y openvpn iptables curl && \
     apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-RUN curl -L https://github.com/OpenVPN/easy-rsa/archive/v3.0.0.tar.gz | tar xzf -  && \
-	mkdir -p /usr/local/share/easy-rsa && \
-	mv easy-rsa-3.0.0/easyrsa3 /usr/local/share/easy-rsa/easyrsa3 && \
-    ln -s /usr/local/share/easy-rsa/easyrsa3/easyrsa /usr/local/bin && \
-    rm -fr /easy-rsa-3.0.0
+RUN mkdir -p /usr/local/share/easy-rsa && \
+    curl -L https://github.com/OpenVPN/easy-rsa/archive/v3.0.0.tar.gz | tar xzf - --strip=1 -C /usr/local/share/easy-rsa easy-rsa-3.0.0/easyrsa3 && \
+    ln -s /usr/local/share/easy-rsa/easyrsa3/easyrsa /usr/local/bin
 
 # Needed by scripts
 ENV OPENVPN /etc/openvpn