diff --git a/dockerfiles/alt-linux.dockerfile b/dockerfiles/alt-linux.dockerfile
index d8fca8c..d9c271f 100644
--- a/dockerfiles/alt-linux.dockerfile
+++ b/dockerfiles/alt-linux.dockerfile
@@ -19,6 +19,7 @@ RUN \
   apt-get update && \
   apt-get install -y \
     gcc \
+    gem-rake \
     libruby-devel \
     libpcre-devel \
     make \