diff --git a/macos/.zshrc-additional b/macos/.zshrc-additional
index faf2544..7e19b81 100644
--- a/macos/.zshrc-additional
+++ b/macos/.zshrc-additional
@@ -8,3 +8,5 @@ fi
 #export PATH=/opt/homebrew/opt/python@3.12/libexec/bin:$PATH
 ## python 3.11
 export PATH=/opt/homebrew/opt/python@3.11/libexec/bin:$PATH
+## docker on apple silicon
+export DOCKER_DEFAULT_PLATFORM=linux/amd64