diff --git a/.m1k1o/chromium/Dockerfile b/.m1k1o/chromium/Dockerfile
index df36e933..a6e7d62b 100644
--- a/.m1k1o/chromium/Dockerfile
+++ b/.m1k1o/chromium/Dockerfile
@@ -1,4 +1,5 @@
-FROM m1k1o/neko:base
+ARG BASE_IMAGE=m1k1o/neko:base
+FROM $BASE_IMAGE
 
 #
 # install neko chromium
diff --git a/.m1k1o/ungoogled-chromium/Dockerfile b/.m1k1o/ungoogled-chromium/Dockerfile
index 0aafc7b8..0b6141be 100644
--- a/.m1k1o/ungoogled-chromium/Dockerfile
+++ b/.m1k1o/ungoogled-chromium/Dockerfile
@@ -1,4 +1,5 @@
-FROM m1k1o/neko:base
+ARG BASE_IMAGE=m1k1o/neko:base
+FROM $BASE_IMAGE
 
 ARG SRC_URL="https://github.com/macchrome/linchrome/releases/download/v89.0.4389.90-r843830-portable-ungoogled-Lin64/ungoogled-chromium_89.0.4389.90_1.vaapi_linux.tar.xz"
 
diff --git a/.m1k1o/vlc/Dockerfile b/.m1k1o/vlc/Dockerfile
index c9dccb11..aea2e1d6 100644
--- a/.m1k1o/vlc/Dockerfile
+++ b/.m1k1o/vlc/Dockerfile
@@ -1,4 +1,5 @@
-FROM m1k1o/neko:base
+ARG BASE_IMAGE=m1k1o/neko:base
+FROM $BASE_IMAGE
 
 #
 # install vlc
diff --git a/.m1k1o/vncviewer/Dockerfile b/.m1k1o/vncviewer/Dockerfile
index 6deea331..e6303872 100644
--- a/.m1k1o/vncviewer/Dockerfile
+++ b/.m1k1o/vncviewer/Dockerfile
@@ -1,4 +1,5 @@
-FROM m1k1o/neko:base
+ARG BASE_IMAGE=m1k1o/neko:base
+FROM $BASE_IMAGE
 
 #
 # install vncviewer
diff --git a/.m1k1o/xfce/Dockerfile b/.m1k1o/xfce/Dockerfile
index 6c7da06a..b1aa6a7d 100644
--- a/.m1k1o/xfce/Dockerfile
+++ b/.m1k1o/xfce/Dockerfile
@@ -1,4 +1,5 @@
-FROM m1k1o/neko:base
+ARG BASE_IMAGE=m1k1o/neko:base
+FROM $BASE_IMAGE
 
 #
 # install xfce