diff --git a/Dockerfile b/Dockerfile
index f3a1a14..9388d3d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,6 +22,8 @@ RUN apk add --no-cache \
 # ensure the UTC timezone is set
 	ln -fs /usr/share/zoneinfo/Etc/UTC /etc/localtime
 
+RUN chmod -R g+rw /opt/barad-dur && chgrp -R 0 /opt/barad-dur
+
 WORKDIR /opt/barad-dur
 COPY --from=builder /app/target/release/barad-dur /usr/local/bin/barad-dur
 COPY --from=builder /app/migrations /opt/barad-dur/migrations
diff --git a/src/settings.rs b/src/settings.rs
index 50608d9..1172430 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -24,7 +24,7 @@ impl Settings {
             .set_default("server.host", "[::]:8080")?
             .set_default("log.level", "warn")?
             .add_source(
-                Environment::with_prefix("BDR")
+                Environment::with_prefix("FAMEDLY_BDR")
                     .prefix_separator("__")
                     .separator("__"),
             )