diff --git a/docker/tor-relay/Dockerfile b/docker/tor-relay/Dockerfile
index 84b377c..ab5daab 100644
--- a/docker/tor-relay/Dockerfile
+++ b/docker/tor-relay/Dockerfile
@@ -5,6 +5,7 @@ FROM alpine:latest AS builder
 RUN apk update && \
     apk add --no-cache \
     build-base \
+    linux-headers \
     libevent-dev \
     openssl-dev \
     zlib-dev \