diff --git a/ofborg/test-srcs/make-maintainer-pr.sh b/ofborg/test-srcs/make-maintainer-pr.sh
index b17a395..08433d9 100755
--- a/ofborg/test-srcs/make-maintainer-pr.sh
+++ b/ofborg/test-srcs/make-maintainer-pr.sh
@@ -4,19 +4,22 @@ set -eu
 bare=$1
 co=$2
 
+export GIT_CONFIG_GLOBAL=/dev/null
+export GIT_CONFIG_NOSYSTEM=1
+
 makepr() {
     git init --bare "$bare"
     git clone "$bare" "$co"
 
     cp -r maintainers/* "$co/"
     git -C "$co" add .
-    git -C "$co" commit --no-gpg-sign --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "initial repo commit"
+    git -C "$co" commit --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "initial repo commit"
     git -C "$co" push origin master
 
     cp maintainers-pr/*  "$co/"
     git -C "$co" checkout -b my-cool-pr
     git -C "$co" add .
-    git -C "$co" commit --no-gpg-sign --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "check out this cool PR"
+    git -C "$co" commit --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "check out this cool PR"
     git -C "$co" push origin my-cool-pr:refs/pull/1/head
 }
 
diff --git a/ofborg/test-srcs/make-pr.sh b/ofborg/test-srcs/make-pr.sh
index 018c333..92e8ca7 100755
--- a/ofborg/test-srcs/make-pr.sh
+++ b/ofborg/test-srcs/make-pr.sh
@@ -4,19 +4,22 @@ set -eu
 bare=$1
 co=$2
 
+export GIT_CONFIG_GLOBAL=/dev/null
+export GIT_CONFIG_NOSYSTEM=1
+
 makepr() {
     git init --bare "$bare"
     git clone "$bare" "$co"
 
     cp build/* "$co/"
     git -C "$co" add .
-    git -C "$co" commit --no-gpg-sign --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "initial repo commit"
+    git -C "$co" commit --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "initial repo commit"
     git -C "$co" push origin master
 
     cp build-pr/*  "$co/"
     git -C "$co" checkout -b my-cool-pr
     git -C "$co" add .
-    git -C "$co" commit --no-gpg-sign --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "check out this cool PR"
+    git -C "$co" commit --author "GrahamCOfBorg <graham+cofborg@example.com>" -m "check out this cool PR"
     git -C "$co" push origin my-cool-pr:refs/pull/1/head
 }