diff --git a/ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-commands.sh b/ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-commands.sh
index 8c338711fd7fe..8635905fded20 100755
--- a/ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-commands.sh
+++ b/ci-operator/step-registry/ipi/conf/aws/ipi-conf-aws-commands.sh
@@ -8,16 +8,13 @@ CONFIG="${SHARED_DIR}/install-config.yaml"
 
 expiration_date=$(date -d '4 hours' --iso=minutes --utc)
 
-case "$((RANDOM % 4))" in
-0) aws_region=us-east-1
-   zone_1=us-east-1b
-   zone_2=us-east-1c;;
-1) aws_region=us-east-2;;
-2) aws_region=us-west-1;;
-3) aws_region=us-west-2;;
-*) echo >&2 "invalid AWS region index"; exit 1;;
+REGION="${LEASED_RESOURCE}"
+case "${REGION}" in
+us-east-1)
+   ZONE_1=us-east-1b
+   ZONE_2=us-east-1c;;
 esac
-echo "AWS region: ${aws_region} (zones: ${zone_1:-${aws_region}a} ${zone_2:-${aws_region}b})"
+echo "AWS region: ${REGION} (zones: ${ZONE_1:-${REGION}a} ${ZONE_2:-${REGION}b})"
 
 cat >> "${CONFIG}" << EOF
 baseDomain: origin-ci-int-aws.dev.rhcloud.com
@@ -26,19 +23,19 @@ controlPlane:
   platform:
     aws:
       zones:
-      - ${zone_1:-${aws_region}a}
-      - ${zone_2:-${aws_region}b}
+      - ${ZONE1:-${REGION}a}
+      - ${ZONE2:-${REGION}b}
 compute:
 - name: worker
   platform:
     aws:
       type: ${COMPUTE_NODE_TYPE}
       zones:
-      - ${zone_1:-${aws_region}a}
-      - ${zone_2:-${aws_region}b}
+      - ${ZONE1:-${REGION}a}
+      - ${ZONE2:-${REGION}b}
 platform:
   aws:
-    region: ${aws_region}
+    region: ${REGION}
     userTags:
       expirationDate: ${expiration_date}
 EOF