diff --git a/Library/brew.sh b/Library/brew.sh
index 3e137323c2..03eaa43903 100644
--- a/Library/brew.sh
+++ b/Library/brew.sh
@@ -209,11 +209,6 @@ EOS
   esac
 fi
 
-# Hide shellcheck complaint:
-# shellcheck source=/dev/null
-source "$HOMEBREW_LIBRARY/Homebrew/utils/ruby.sh"
-setup-ruby-path
-
 # Hide shellcheck complaint:
 # shellcheck source=/dev/null
 source "$HOMEBREW_LIBRARY/Homebrew/utils/analytics.sh"
@@ -243,6 +238,11 @@ then
   source "$HOMEBREW_BASH_COMMAND"
   { update-preinstall; "homebrew-$HOMEBREW_COMMAND" "$@"; exit $?; }
 else
+  # Hide shellcheck complaint:
+  # shellcheck source=/dev/null
+  source "$HOMEBREW_LIBRARY/Homebrew/utils/ruby.sh"
+  setup-ruby-path
+
   # Unshift command back into argument list (unless argument list was empty).
   [[ "$HOMEBREW_ARG_COUNT" -gt 0 ]] && set -- "$HOMEBREW_COMMAND" "$@"
   { update-preinstall; exec "$HOMEBREW_RUBY_PATH" -W0 "$HOMEBREW_LIBRARY/brew.rb" "$@"; }