diff --git a/doc/asciidoc-helper.sh b/doc/asciidoc-helper.sh
index edc9b5b0ea..fdaab05b8e 100755
--- a/doc/asciidoc-helper.sh
+++ b/doc/asciidoc-helper.sh
@@ -12,6 +12,8 @@ if [ $# != 3 ]; then
     exit 1
 fi
 
+export SOURCE_DATE_EPOCH=$(git show --no-patch --format='%ct')
+
 output=$3
 
 if [ "$1" = "html" ]; then
@@ -19,7 +21,7 @@ if [ "$1" = "html" ]; then
     base=${output%%.html.in}
 
     if [ "$2" != none ]; then
-        TZ=UTC "$2" -d manpage -o "$output" "$input"
+        TZ=UTC "$2" -f "$(dirname $0)/nofooter.conf" -d manpage -o "$output" "$input";
     else
         echo "=================================="
         echo
diff --git a/doc/nofooter.conf b/doc/nofooter.conf
new file mode 100644
index 0000000000..f16d76b2da
--- /dev/null
+++ b/doc/nofooter.conf
@@ -0,0 +1,3 @@
+# There is a single space on the footer-text line to make it reproducible.
+[footer-text]
+