diff --git a/0004.patch b/0004.patch
index 9736fbe..7cd4449 100644
--- a/0004.patch
+++ b/0004.patch
@@ -36,3 +36,4 @@ index bfb7a1ac..24e1c2e7 100755
          [[ -c ${initdir}/dev/null ]] || mknod "${initdir}"/dev/null c 1 3
          [[ -c ${initdir}/dev/kmsg ]] || mknod "${initdir}"/dev/kmsg c 1 11
          [[ -c ${initdir}/dev/console ]] || mknod "${initdir}"/dev/console c 5 1
+
diff --git a/0005.patch b/0005.patch
new file mode 100644
index 0000000..9da286d
--- /dev/null
+++ b/0005.patch
@@ -0,0 +1,57 @@
+From 805599442110985dfee83ea826d35b5943805313 Mon Sep 17 00:00:00 2001
+From: Harald Hoyer <harald@redhat.com>
+Date: Tue, 18 May 2021 10:13:56 +0200
+Subject: [PATCH] fix(base): add missing `str_replace` to `dracut-dev-lib.sh`
+
+```
+dracut-dev-lib.sh: line 92: str_replace: command not found
+dracut-dev-lib.sh: line 98: /var/tmp/dracut.sabKZg/initramfs/initqueue/finished/devexists-.sh: No such file or directory
+dracut-dev-lib.sh: line 83: /var/tmp/dracut.sabKZg/initramfs/emergency/80-.sh: No such file or directory
+```
+---
+ modules.d/99base/dracut-dev-lib.sh | 20 ++++++++++++++++++++
+ modules.d/99base/module-setup.sh   |  1 +
+ 2 files changed, 21 insertions(+)
+
+diff --git a/modules.d/99base/dracut-dev-lib.sh b/modules.d/99base/dracut-dev-lib.sh
+index 5083f4f2..0df22b82 100755
+--- a/modules.d/99base/dracut-dev-lib.sh
++++ b/modules.d/99base/dracut-dev-lib.sh
+@@ -1,5 +1,25 @@
+ #!/bin/sh
+ 
++# replaces all occurrences of 'search' in 'str' with 'replacement'
++#
++# str_replace str search replacement
++#
++# example:
++# str_replace '  one two  three  ' ' ' '_'
++str_replace() {
++    local in="$1"
++    local s="$2"
++    local r="$3"
++    local out=''
++
++    while [ "${in##*"$s"*}" != "$in" ]; do
++        chop="${in%%"$s"*}"
++        out="${out}${chop}$r"
++        in="${in#*"$s"}"
++    done
++    echo "${out}${in}"
++}
++
+ # get a systemd-compatible unit name from a path
+ # (mimicks unit_name_from_path_instance())
+ dev_unit_name() {
+diff --git a/modules.d/99base/module-setup.sh b/modules.d/99base/module-setup.sh
+index 7eb0a277..07c33eef 100755
+--- a/modules.d/99base/module-setup.sh
++++ b/modules.d/99base/module-setup.sh
+@@ -117,6 +117,7 @@ install() {
+                     export DRACUT_SYSTEMD=1
+                 fi
+                 export PREFIX="$initdir"
++                export hookdir=/lib/dracut/hooks
+ 
+                 # shellcheck source=dracut-dev-lib.sh
+                 . "$moddir/dracut-dev-lib.sh"
diff --git a/dracut.spec b/dracut.spec
index 683454b..499c844 100644
--- a/dracut.spec
+++ b/dracut.spec
@@ -5,7 +5,7 @@
 # strip the automatically generated dep here and instead co-own the
 # directory.
 %global __requires_exclude pkg-config
-%define dist_free_release 5.git20210517
+%define dist_free_release 6.git20210518
 
 Name: dracut
 Version: 054
@@ -33,6 +33,7 @@ Patch1: 0001.patch
 Patch2: 0002.patch
 Patch3: 0003.patch
 Patch4: 0004.patch
+Patch5: 0005.patch
 
 Source1: https://www.gnu.org/licenses/lgpl-2.1.txt
 
@@ -488,6 +489,9 @@ echo 'dracut_rescue_image="yes"' > $RPM_BUILD_ROOT%{dracutlibdir}/dracut.conf.d/
 %{_prefix}/lib/kernel/install.d/51-dracut-rescue.install
 
 %changelog
+* Tue May 18 2021 Harald Hoyer <harald@redhat.com> - 054-6.git20210518
+- fix for `str_replace: command not found`
+
 * Mon May 17 2021 Harald Hoyer <harald@redhat.com> - 054-4.git20210517
 - version 054