diff --git a/linux-x64/Dockerfile b/linux-x64/Dockerfile
index c87c35b..a9c1797 100644
--- a/linux-x64/Dockerfile
+++ b/linux-x64/Dockerfile
@@ -1,9 +1,11 @@
 FROM dockcross/base:latest
 MAINTAINER Matt McCormick "matt.mccormick@kitware.com"
 
-RUN apt-get update && apt-get -y install \
-    libelf-dev && \
-    apt-get clean --yes
+RUN apt-get update && \
+    apt-get -y install \
+    libelf-dev \
+    libssl-dev \
+    && apt-get clean --yes
 
 ENV CROSS_TRIPLE x86_64-linux-gnu
 ENV CROSS_ROOT /usr/bin