diff --git a/src/adr-upgrade-repository b/src/adr-upgrade-repository
index fccc7d1..9b14e07 100755
--- a/src/adr-upgrade-repository
+++ b/src/adr-upgrade-repository
@@ -6,7 +6,7 @@ eval "$($(dirname $0)/adr-config)"
 ##
 ## Upgrades the ADR documents to the latest format.
 
-for f in $(adr list)
+for f in $("$adr_bin_dir/adr-list")
 do
 	# Upgrade date format to ISO 8601
 	sed -E -e 's+Date: ([0-9]{2})/([0-9]{2})/([0-9]{4})+Date: \3-\2-\1+' "$f" > "$f.upgraded"