diff --git a/libisoburn/trunk/releng/run_all_auto b/libisoburn/trunk/releng/run_all_auto
index 4880c762..c98357d4 100755
--- a/libisoburn/trunk/releng/run_all_auto
+++ b/libisoburn/trunk/releng/run_all_auto
@@ -6,8 +6,7 @@
 
 set -e
 
-export RELENG_SCRIPT_RUN_BY_RUN_ALL_AUTO
-RELENG_SCRIPT_RUN_BY_RUN_ALL_AUTO=1
+export RELENG_SCRIPT_RUN_BY_RUN_ALL_AUTO=1
 
 SELF=$(basename "$0")
 GEN_DATA_DIR=releng_generated_data