diff --git a/stack.sh b/stack.sh
index fd18651..8a19438 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1304,7 +1304,9 @@
 # Unable to use LUKS passphrase that is exactly 16 bytes long
 # https://bugzilla.redhat.com/show_bug.cgi?id=1447297
 if is_service_enabled nova; then
-    iniset $NOVA_CONF key_manager fixed_key $(generate_hex_string 36)
+    key=$(generate_hex_string 36)
+    iniset $NOVA_CONF key_manager fixed_key "$key"
+    iniset $NOVA_CPU_CONF key_manager fixed_key "$key"
 fi
 
 # Launch the nova-api and wait for it to answer before continuing