diff --git a/system/bootloader.sls b/system/bootloader.sls
index 340cab3..84bb963 100644
--- a/system/bootloader.sls
+++ b/system/bootloader.sls
@@ -38,7 +38,7 @@ system_bootloader_mkinitfs_conf:
       - system_bootloader_pkgs
       - system_bootloader_install
 
-{% set CURRENT_SUBVOLUME_TIMESTAMP = salt['cmd.shell']('CURRENT_SUBVOLUME=$(LC_ALL=C btrfs sub show / | LC_ALL=C grep -aPom1 \'^\s*Name:\s*\K\S.*\'); TIMESTAMP_FORMAT=\'[[:digit:]]{4}-[[:digit:]]{2}-[[:digit:]]{2}_[[:digit:]]{2}-[[:digit:]]{2}-[[:digit:]]{2}\'; echo "$CURRENT_SUBVOLUME" | grep -Eo "$TIMESTAMP_FORMAT"') %}
+{% set CURRENT_SUBVOLUME_TIMESTAMP = salt['cmd.shell']('CURRENT_SUBVOLUME=$(LC_ALL=C btrfs sub show / | LC_ALL=C grep Name: | tr -d \'[:space:]\'); TIMESTAMP_FORMAT=\'[[:digit:]]{4}-[[:digit:]]{2}-[[:digit:]]{2}_[[:digit:]]{2}-[[:digit:]]{2}-[[:digit:]]{2}\'; echo "$CURRENT_SUBVOLUME" | grep -Eo "$TIMESTAMP_FORMAT"') %}
 {% set CURRENT_SUBVOLUME_TIMESTAMP_HUMAN = salt['cmd.shell']('CURRENT_SUBVOLUME_TIMESTAMP=\'' + CURRENT_SUBVOLUME_TIMESTAMP + '\'; echo "${CURRENT_SUBVOLUME_TIMESTAMP:0:10} ${CURRENT_SUBVOLUME_TIMESTAMP:11:2}:${CURRENT_SUBVOLUME_TIMESTAMP:14:2}"') %}
 {% set KERNEL_VERSION = salt['cmd.shell']('uname -r') %}