diff --git a/contrib/ci-builders/docker-build.sh b/contrib/ci-builders/docker-build.sh
index 498cbbac6..58af6de30 100755
--- a/contrib/ci-builders/docker-build.sh
+++ b/contrib/ci-builders/docker-build.sh
@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
+
+export LC_ALL=C
 set -exo pipefail
+
 # Debian 9
 docker build . -f Dockerfile-build-python.apt --build-arg FROMBASEOS=debian --build-arg FROMBASEOS_BUILD_TAG=9 -t electriccoinco/zcashd-build-debian9
 docker push electriccoinco/zcashd-build-debian9
diff --git a/contrib/docker/entrypoint.sh b/contrib/docker/entrypoint.sh
index f9717102f..0dc336851 100755
--- a/contrib/docker/entrypoint.sh
+++ b/contrib/docker/entrypoint.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eo pipefail
 
 if [[ ${1} == "--version" ]];then
diff --git a/qa/zcash/performance-measurements.sh b/qa/zcash/performance-measurements.sh
index 9d18ef830..34ef268f0 100755
--- a/qa/zcash/performance-measurements.sh
+++ b/qa/zcash/performance-measurements.sh
@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+
+export LC_ALL=C
 set -u
 
 
diff --git a/zcutil/afl/afl-build.sh b/zcutil/afl/afl-build.sh
index 3faedd54f..9cf1e7e34 100755
--- a/zcutil/afl/afl-build.sh
+++ b/zcutil/afl/afl-build.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu -o pipefail
 
 AFL_HARDEN=1
diff --git a/zcutil/afl/afl-get.sh b/zcutil/afl/afl-get.sh
index 97ff389d9..01ed2bd81 100755
--- a/zcutil/afl/afl-get.sh
+++ b/zcutil/afl/afl-get.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu -o pipefail
 
 for d in src/fuzzing/*/ ; do
diff --git a/zcutil/afl/afl-getbuildrun.sh b/zcutil/afl/afl-getbuildrun.sh
index bad640609..028ee6419 100755
--- a/zcutil/afl/afl-getbuildrun.sh
+++ b/zcutil/afl/afl-getbuildrun.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu -o pipefail
 
 for d in src/fuzzing/*/ ; do
diff --git a/zcutil/afl/afl-run.sh b/zcutil/afl/afl-run.sh
index f29368265..e6872d9c2 100755
--- a/zcutil/afl/afl-run.sh
+++ b/zcutil/afl/afl-run.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -exu -o pipefail
 
 for d in src/fuzzing/*/ ; do
diff --git a/zcutil/build-debian-package.sh b/zcutil/build-debian-package.sh
index 3165c469a..caf4728b5 100755
--- a/zcutil/build-debian-package.sh
+++ b/zcutil/build-debian-package.sh
@@ -2,6 +2,7 @@
 ## Usage:
 ##  ./zcutil/build-debian-package.sh
 
+export LC_ALL=C
 set -e
 set -x
 
diff --git a/zcutil/build.sh b/zcutil/build.sh
index f49cfc596..2867dfa70 100755
--- a/zcutil/build.sh
+++ b/zcutil/build.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu -o pipefail
 set +x
 
diff --git a/zcutil/clean.sh b/zcutil/clean.sh
index 57c00f74a..56d557885 100755
--- a/zcutil/clean.sh
+++ b/zcutil/clean.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # Copyright (c) 2020 The Zcash developers
 
+export LC_ALL=C
+
 rm -f src/Makefile
 rm -f src/Makefile.in
 rm -f doc/man/Makefile
diff --git a/zcutil/cleanup-tags.sh b/zcutil/cleanup-tags.sh
index 50e571382..d4e11aec2 100755
--- a/zcutil/cleanup-tags.sh
+++ b/zcutil/cleanup-tags.sh
@@ -4,6 +4,7 @@
 #
 # Note: It doesn't delete any local tags.
 
+export LC_ALL=C
 set -exu -o pipefail
 
 ZCASH_TAG_RGX='^v[0-9]+.[0-9]+.[0-9]+.z[0-9]+'
diff --git a/zcutil/distclean.sh b/zcutil/distclean.sh
index feb1a639a..6d08435c3 100755
--- a/zcutil/distclean.sh
+++ b/zcutil/distclean.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 # Copyright (c) 2020 The Zcash developers
 
+export LC_ALL=C
+
 zcutil/clean.sh
 
 rm -rf depends/*-*-*
diff --git a/zcutil/fetch-params.sh b/zcutil/fetch-params.sh
index 9f89b5a74..b309634c2 100755
--- a/zcutil/fetch-params.sh
+++ b/zcutil/fetch-params.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu
 
 if [[ "$OSTYPE" == "darwin"* ]]; then
diff --git a/zcutil/libfuzzer/libfuzzer-build.sh b/zcutil/libfuzzer/libfuzzer-build.sh
index 3fdb4c465..9ad59b88a 100755
--- a/zcutil/libfuzzer/libfuzzer-build.sh
+++ b/zcutil/libfuzzer/libfuzzer-build.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export LC_ALL=C
 set -eu -o pipefail
 
 usage() {