diff --git a/fabrica b/fabrica
index b29a348..348d4c3 100755
--- a/fabrica
+++ b/fabrica
@@ -27,7 +27,7 @@ function trun()
     OPTS=""
     for fl in ${VAR_FILES}
     do
-       OPTS="${OPTS} -var-files ${fl}"
+       OPTS="${OPTS} -var-file ${fl}"
     done
 
     ${TERRA} ${1} ${OPTS}