diff --git a/grubby-bls b/grubby-bls
index def45dd..aa1f3a2 100755
--- a/grubby-bls
+++ b/grubby-bls
@@ -581,8 +581,33 @@ remove_var_prefix() {
 
 update_grubcfg()
 {
-    if [[ $arch = 'ppc64' || $arch = 'ppc64le' ]]; then
-	grub2-mkconfig --no-grubenv-update -o "${grub_config}" >& /dev/null
+    # Older ppc64le OPAL firmware (petitboot version < 1.8.0) don't have BLS support
+    # so grub2-mkconfig has to be run to generate a config with menuentry commands.
+    if [ "${arch}" = "ppc64le" ] && [ -d /sys/firmware/opal ]; then
+        RUN_MKCONFIG="true"
+        petitboot_path="/sys/firmware/devicetree/base/ibm,firmware-versions/petitboot"
+
+        if test -e ${petitboot_path}; then
+            read -r -d '' petitboot_version < ${petitboot_path}
+            petitboot_version="$(echo ${petitboot_version//v})"
+
+            if test -n ${petitboot_version}; then
+                major_version="$(echo ${petitboot_version} | cut -d . -f1)"
+                minor_version="$(echo ${petitboot_version} | cut -d . -f2)"
+
+                re='^[0-9]+$'
+                if [[ $major_version =~ $re ]] && [[ $minor_version =~ $re ]] &&
+                       ([[ ${major_version} -gt 1 ]] ||
+                            [[ ${major_version} -eq 1 &&
+                                 ${minor_version} -ge 8  ]]); then
+                    RUN_MKCONFIG="false"
+                fi
+            fi
+        fi
+    fi
+
+    if [[ $RUN_MKCONFIG = "true" ]]; then
+        grub2-mkconfig --no-grubenv-update -o "${grub_config}" >& /dev/null
     fi
 }
 
diff --git a/grubby.spec b/grubby.spec
index 1a7f321..512415e 100644
--- a/grubby.spec
+++ b/grubby.spec
@@ -1,6 +1,6 @@
 Name: grubby
 Version: 8.40
-Release: 52%{?dist}
+Release: 53%{?dist}
 Summary: Command line tool for updating bootloader configs
 License: GPLv2+
 URL: https://github.com/rhinstaller/grubby
@@ -131,6 +131,10 @@ current boot environment.
  %{_mandir}/man8/*.8*
 
 %changelog
+* Tue Apr 27 2021 Javier Martinez Canillas <javierm@redhat.com> - 8.40-53
+- grubby-bs: Fix changing kernel cmdline params not working on ppc64le
+  Resolves: rhbz#1896222
+
 * Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 8.40-52
 - Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937