diff --git a/entrypoint.sh b/entrypoint.sh
index 4fdb2c2..dfaa92c 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 if [ "${ROOT_PASSWORD}" == "root" ] || [ -z "${ROOT_PASSWORD}" ]; then
-    export ROOT_PASSWORD="$(hexdump -e '%02x' -n 16 /dev/urandom)"
+    export ROOT_PASSWORD="$(hexdump -e '"%02x"' -n 16 /dev/urandom)"
 fi
 
 echo "root:${ROOT_PASSWORD}" | chpasswd