diff --git a/Dockerfile b/Dockerfile
index 95fa200..eda6dfc 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,6 @@ COPY . .
 
 RUN cargo install --path .
 
-ENV INPUT=.
-ENV OUTPUT=output
-CMD historian $INPUT --render-to $OUTPUT
+ENV PLUGIN_INPUT=.
+ENV PLUGIN_OUTPUT=output
+CMD historian $PLUGIN_INPUT --render-to $PLUGIN_OUTPUT