diff --git a/back/update_vendors.sh b/back/update_vendors.sh
index 27d8aea5..75db0332 100755
--- a/back/update_vendors.sh
+++ b/back/update_vendors.sh
@@ -26,16 +26,16 @@ sudo cp *.csv 2_backup
 echo ""
 echo Download Start
 echo ""
-sudo curl $1  -O https://standards-oui.ieee.org/iab/iab.csv \
-              -O https://standards-oui.ieee.org/iab/iab.txt \
-              -O https://standards-oui.ieee.org/oui28/mam.csv \
-              -O https://standards-oui.ieee.org/iab/iab.txt \
-              -O https://standards-oui.ieee.org/oui28/mam.csv \
-              -O https://standards-oui.ieee.org/oui28/mam.txt \
-              -O https://standards-oui.ieee.org/oui36/oui36.csv \
-              -O https://standards-oui.ieee.org/oui36/oui36.txt \
-              -O https://standards-oui.ieee.org/oui/oui.csv \
-              -O https://standards-oui.ieee.org/oui/oui.txt
+sudo curl $1  -LO https://standards-oui.ieee.org/iab/iab.csv \
+              -LO https://standards-oui.ieee.org/iab/iab.txt \
+              -LO https://standards-oui.ieee.org/oui28/mam.csv \
+              -LO https://standards-oui.ieee.org/iab/iab.txt \
+              -LO https://standards-oui.ieee.org/oui28/mam.csv \
+              -LO https://standards-oui.ieee.org/oui28/mam.txt \
+              -LO https://standards-oui.ieee.org/oui36/oui36.csv \
+              -LO https://standards-oui.ieee.org/oui36/oui36.txt \
+              -LO https://standards-oui.ieee.org/oui/oui.csv \
+              -LO https://standards-oui.ieee.org/oui/oui.txt
 echo ""
 echo Download Finished