diff --git a/tor/doc/asciidoc-helper.sh b/tor/doc/asciidoc-helper.sh
index a3e2f8f9b..32bd0d940 100755
--- a/tor/doc/asciidoc-helper.sh
+++ b/tor/doc/asciidoc-helper.sh
@@ -12,8 +12,10 @@ if [ $# != 3 ]; then
     exit 1
 fi
 
-SOURCE_DATE_EPOCH="$(git -C "$(dirname "$0")" show --no-patch --format='%ct')"
-export SOURCE_DATE_EPOCH
+# Use SOURCE_DATE_EPOCH variable from the build environment.
+# See https://bugzilla.altlinux.org/34105 for details.
+#SOURCE_DATE_EPOCH="$(git -C "$(dirname "$0")" show --no-patch --format='%ct')"
+#export SOURCE_DATE_EPOCH
 
 output=$3