diff --git a/tools/setup_Debian.sh b/tools/setup_Debian.sh
index ce167bb719..2648684516 100755
--- a/tools/setup_Debian.sh
+++ b/tools/setup_Debian.sh
@@ -30,7 +30,7 @@ function setup_disk {
 
     if [ ! -f /docker ]; then
         sudo dd if=/dev/zero of=/docker bs=1M count=10240
-        losetup -f /docker
+        sudo losetup -f /docker
         DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
     fi
 
diff --git a/tools/setup_RedHat.sh b/tools/setup_RedHat.sh
index f9e6a4fe36..cffe176bb4 100755
--- a/tools/setup_RedHat.sh
+++ b/tools/setup_RedHat.sh
@@ -14,7 +14,7 @@ function setup_disk {
 
     if [ ! -f /docker ]; then
         sudo dd if=/dev/zero of=/docker bs=1M count=20480
-        losetup -f /docker
+        sudo losetup -f /docker
         DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
     fi