diff --git a/.dockerignore b/.dockerignore
index c8bd5f5f1a3..2082f4b1e2d 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -8,6 +8,7 @@
 
 # Ignore Docker files
 docker
+!docker/etc
 
 # Ignore a part of files under src
 src/*/*.asc