diff --git a/bin/ch-test b/bin/ch-test
index 471430cc2..14e97fea6 100755
--- a/bin/ch-test
+++ b/bin/ch-test
@@ -1221,6 +1221,10 @@ case $phase in
         done
         ;;
     rootemu)
+        if [[ $scope != full ]]; then
+            printf "error: rootemu incompatible with scope: $scope\n"
+            exit 1
+        fi
         test_rootemu "foo"
         ;;
     run)
diff --git a/test/force-auto.py.in b/test/force-auto.py.in
index 596e6b591..0afd43cfb 100644
--- a/test/force-auto.py.in
+++ b/test/force-auto.py.in
@@ -329,6 +329,8 @@ class T_Alpine_Latest(Alpine):
 print("""\
 # NOTE: This file is auto-generated. Do not modify.
 
+scope full
+
 load common
 
 setup () {