diff --git a/Dockerfile b/Dockerfile
index 229d379..bd2d6c0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,42 +2,42 @@ FROM debian:buster AS builder
 
 # Build-time dependencies
 RUN apt-get update -yqq && apt-get install -yqq \
-		ca-certificates \
-		build-essential \
-		pkg-config \
-		qt5-default \
-		libqt5svg5* \
-		libboost-dev \
-		libasound2-dev \
-		libssl-dev \
-		libspeechd-dev \
-		libzeroc-ice-dev \
-		libpulse-dev \
-		libcap-dev \
-		libprotobuf-dev \
-		libprotoc-dev \
-		protobuf-compiler \
-		protobuf-compiler-grpc \
-		libgrpc++-dev \
-		libogg-dev \
-		libavahi-compat-libdnssd-dev \
-		libsndfile1-dev \
-		libbz2-dev \
-		libxi-dev \
-		git --no-install-recommends
+    ca-certificates \
+    build-essential \
+    pkg-config \
+    qt5-default \
+    libqt5svg5* \
+    libboost-dev \
+    libasound2-dev \
+    libssl-dev \
+    libspeechd-dev \
+    libzeroc-ice-dev \
+    libpulse-dev \
+    libcap-dev \
+    libprotobuf-dev \
+    libprotoc-dev \
+    protobuf-compiler \
+    protobuf-compiler-grpc \
+    libgrpc++-dev \
+    libogg-dev \
+    libavahi-compat-libdnssd-dev \
+    libsndfile1-dev \
+    libbz2-dev \
+    libxi-dev \
+    git --no-install-recommends
 
 WORKDIR /usr/src/murmur
 COPY 0001-Fix-ssl.patch /
 RUN \
     git clone https://github.com/mumble-voip/mumble.git . \
-	&& git checkout master \
-        && git apply /0001-Fix-ssl.patch \
-	&& git submodule init \
-	&& git submodule update
+    && git checkout master \
+    && git apply /0001-Fix-ssl.patch \
+    && git submodule init \
+    && git submodule update
 
 RUN \
     qmake -recursive main.pro CONFIG+="no-client no-g15 no-bonjour grpc" \
-	&& make release
+    && make release
 
 
 FROM debian:buster
@@ -45,24 +45,24 @@ EXPOSE 64738/tcp 64738/udp
 
 ENV HOME /home/user
 RUN useradd --create-home --home-dir $HOME user \
-	&& chown -R user:user $HOME
+    && chown -R user:user $HOME
 
 WORKDIR $HOME
 
 # Runtime dependencies
 RUN apt-get update && apt-get install -yqq \
-		ca-certificates \
-		'libprotobuf[0-9]+$' \
-		libqt5core5a \
-		libqt5dbus5 \
-		libqt5xml5 \
-		libqt5sql5 \
-		libqt5network5 \
-		libcap2 \
-		'libgrpc[0-9]+$' \
-		libgrpc++1 \
-		libzeroc-ice3.7 \
-	&& apt-get clean && rm -rf /var/lib/apt/lists/*
+    ca-certificates \
+    'libprotobuf[0-9]+$' \
+    libqt5core5a \
+    libqt5dbus5 \
+    libqt5xml5 \
+    libqt5sql5 \
+    libqt5network5 \
+    libcap2 \
+    'libgrpc[0-9]+$' \
+    libgrpc++1 \
+    libzeroc-ice3.7 \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 COPY --from=builder /usr/src/murmur/release/murmurd /usr/bin/murmurd