diff --git a/usr.sbin/pc-sysinstall/backend-query/disk-info.sh b/usr.sbin/pc-sysinstall/backend-query/disk-info.sh
index 8c55fce7142..adaeaa50f2c 100755
--- a/usr.sbin/pc-sysinstall/backend-query/disk-info.sh
+++ b/usr.sbin/pc-sysinstall/backend-query/disk-info.sh
@@ -28,6 +28,7 @@
 # Query a disk for partitions and display them
 #############################################################################
 
+. ${PROGDIR}/backend/functions.sh
 . ${PROGDIR}/backend/functions-disk.sh
 
 DISK="${1}"
@@ -57,4 +58,3 @@ echo "heads=${HEADS}"
 echo "sectors=${SECS}"
 echo "size=${MB}"
 echo "type=${CTYPE}"
-