diff --git a/windows-base/Dockerfile b/windows-base/Dockerfile
index 0197863..ee79409 100644
--- a/windows-base/Dockerfile
+++ b/windows-base/Dockerfile
@@ -16,7 +16,9 @@ ENV CUR_CURL_VERSION=8_20_0
 ENV CUR_QT_VERSION_MAJOR=5.15
 ENV CUR_QT_VERSION=5.15.18
 ENV QT_SELECT=5
-ENV MINGW_VERSION=14 # provided by Debian
+
+# provided by Debian
+ENV MINGW_VERSION=14
 
 COPY *.zip /soft/
 COPY *.cmake /soft/