diff --git a/build.sh b/build.sh
index 4bb26e4..dc9554d 100755
--- a/build.sh
+++ b/build.sh
@@ -149,6 +149,7 @@ build() {
 	fi;
 };
 
-set +o errexit -o noglob -o nounset; build "${@}";
+set +o errexit -o noglob -o nounset;
+export LANG=C LC_ALL=C; build "${@}";
 
 # vim:filetype=sh textwidth=0
diff --git a/pkgtool.sh b/pkgtool.sh
index 950595e..33bebd1 100755
--- a/pkgtool.sh
+++ b/pkgtool.sh
@@ -296,6 +296,7 @@ pkgtool() {
 	fi;
 };
 
-set +o errexit -o noglob -o nounset; pkgtool "${@}";
+set +o errexit -o noglob -o nounset;
+export LANG=C LC_ALL=C; pkgtool "${@}";
 
 # vim:filetype=sh textwidth=0