diff --git a/docker/hub/Dockerfile b/docker/hub/Dockerfile
index 9c2bc614f..3fe0adf9c 100644
--- a/docker/hub/Dockerfile
+++ b/docker/hub/Dockerfile
@@ -19,7 +19,7 @@ RUN apt-get update && \
         file \
         openssl \
         libssl-dev \
-	libudev-dev \
+        libudev-dev \
         pkg-config \
         dpkg-dev \
         # evmjit dependencies