diff --git a/docker/glance/glance-base/config-glance.sh b/docker/glance/glance-base/config-glance.sh
index b260ed7e93..9907888139 100644
--- a/docker/glance/glance-base/config-glance.sh
+++ b/docker/glance/glance-base/config-glance.sh
@@ -22,9 +22,10 @@ export OS_TENANT_NAME="${ADMIN_TENANT_NAME}"
 EOF
 
 for cfg in /etc/glance/glance-api.conf /etc/glance/glance-registry.conf; do
-    crudini --del $cfg \
+    crudini --set $cfg \
         DEFAULT \
-        log_file
+        log_file \
+	""
 
     for option in auth_protocol auth_host auth_port; do
         crudini --del $cfg \
diff --git a/docker/keystone/start.sh b/docker/keystone/start.sh
index fc01db6940..d7e494f83a 100755
--- a/docker/keystone/start.sh
+++ b/docker/keystone/start.sh
@@ -25,9 +25,10 @@ crudini --set /etc/keystone/keystone.conf \
     DEFAULT \
     admin_token \
     "${KEYSTONE_ADMIN_TOKEN}"
-crudini --del /etc/keystone/keystone.conf \
+crudini --set /etc/keystone/keystone.conf \
     DEFAULT \
-    log_file
+    log_file \
+    ""
 crudini --del /etc/keystone/keystone.conf \
     DEFAULT \
     log_dir