diff --git a/fontpatcher/Dockerfile b/fontpatcher/Dockerfile
index 38d74c4..fc01e67 100644
--- a/fontpatcher/Dockerfile
+++ b/fontpatcher/Dockerfile
@@ -7,19 +7,21 @@ RUN apt-get update && apt-get install -y \
 	&& rm -rf /var/lib/apt/lists/*
 
 RUN buildDeps=' \
-				ca-certificates \
-                git \
-        ' \
-        set -x \
-        && apt-get update \
-        && apt-get install -y $buildDeps --no-install-recommends \
-        && git clone -b develop --depth 1 https://github.com/Lokaltog/vim-powerline.git /pwrline \
-		&& ( \
-        cd /pwrline \
+		ca-certificates \
+		git \
+	' \
+	set -x \
+	&& apt-get update \
+	&& apt-get install -y $buildDeps --no-install-recommends \
+	&& git clone -b develop --depth 1 https://github.com/Lokaltog/vim-powerline.git /pwrline \
+	&& ( \
+		cd /pwrline \
 		&& mv fontpatcher/fontpatcher /usr/bin/ \
 		&& mv fontpatcher/PowerlineSymbols.sfd /usr/bin/ \
-		) \
-        && rm -rf /pwrline \
-        && echo "Build complete."
+	) \
+	&& rm -rf /pwrline \
+	&& apt-get purge -y --auto-remove $buildDeps \
+	&& rm -rf /var/lib/apt/lists/* \
+	&& echo "Build complete."
 
 ENTRYPOINT [ "fontpatcher" ]