diff --git a/dotfiles/zshrc b/dotfiles/zshrc
index 56bfedfc..fa4d4b97 100644
--- a/dotfiles/zshrc
+++ b/dotfiles/zshrc
@@ -3,3 +3,4 @@
 source ~/.lib/shellrc.sh
 source ~/.lib/zsh.sh
 test -r ~/.custom.sh && source ~/.custom.sh
+source_if_exists ~/.this-machine.sh