diff --git a/build-factario-container.jenkins b/build-factario-container.jenkins
index 8f7ec66..24cad02 100644
--- a/build-factario-container.jenkins
+++ b/build-factario-container.jenkins
@@ -8,6 +8,10 @@ def AlpineGlibcBasePackageFilename = "glibc-${AlpineGlibcPackageVersion}.apk"
 def AlpineGlibcBinPackageFilename = "glibc-${AlpineGlibcPackageVersion}.apk"
 def AlpineGlibcI18nPackageFilename = "glibc-${AlpineGlibcPackageVersion}.apk"
 
+def GlibcLanguage = "C.UTF-8"
+
+def TimeZone = "America/Chicago"
+
 def FactorioDownloadURL = "https://www.factorio.com/get-download/stable/headless/linux64"
 def FactorioFileName = "/tmp/factorio.tar"
 
@@ -44,7 +48,8 @@ RUN \
 				"${AlpineGlibcBinPackageFilename}" \
 				"${AlpineGlibcI18nPackageFilename}" && \
 		rm -v "/etc/apk/keys/sgerrand.rsa.pub" && \
-		/usr/glibc-compat/bin/localedef --force --inputfile POSIX --charmap UTF-8 "$LANG" || true && \
+		/usr/glibc-compat/bin/localedef --force --inputfile POSIX --charmap UTF-8 "${GlibcLanguage}" || true && \
+		printf '%s\n' "export LANG=${GlibcLanguage}" "export TZ=${TimeZone}" >> /etc/profile.d/locale.sh && \
 		mkdir  -p /opt /factorio && \
 		curl -sSL "${FactorioDownloadURL}" -o ${FactorioFileName} && \
 		tar -x -f ${FactorioFileName} --directory /opt && \
@@ -55,7 +60,6 @@ RUN \
 				"${AlpineGlibcBinPackageFilename}" \
 				"${AlpineGlibcI18nPackageFilename}" \
 				${FactorioFileName} && \
-		rm -v "/root/.wget-hsts" || true && \
 		addgroup -g 1000 -S factorio && \
 		adduser -u 1000 -G factorio -s /bin/sh -SDH factorio && \
 		chown -R factorio:factorio /opt/factorio /factorio