diff --git a/man-db-groff-1.23.0-warnings.patch b/man-db-groff-1.23.0-warnings.patch
new file mode 100644
index 0000000..5aff45e
--- /dev/null
+++ b/man-db-groff-1.23.0-warnings.patch
@@ -0,0 +1,29 @@
+From b12ffb9df7a6a8956b08206c36be70fac78508bd Mon Sep 17 00:00:00 2001
+From: Colin Watson <cjwatson@debian.org>
+Date: Thu, 20 Jul 2023 00:18:59 +0100
+Subject: [PATCH] Update warning regex for groff 1.23.0
+
+Part of https://gitlab.com/man-db/man-db/-/issues/25.
+
+* man/check-man: groff 1.23.0 says "cannot break line" rather than
+"can't break line"; update regular expression.
+---
+ man/check-man | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/man/check-man b/man/check-man
+index a58b7f9d..f8985a0d 100755
+--- a/man/check-man
++++ b/man/check-man
+@@ -31,7 +31,7 @@ errors="$(LC_ALL=C MANWIDTH=80 MAN_KEEP_FORMATTING=1 "$top_builddir/libtool" \
+ # Indeed, even for other languages we're going to get "cannot adjust line"
+ # if %manpath_config_file% expands to something long. Hmm. We'll just ignore
+ # this across the board for now.
+-errors="$(echo "$errors" | $EGREP -v "(cannot adjust line|can't break line)")" || true
++errors="$(echo "$errors" | $EGREP -v "(cannot adjust line|(can't|cannot) break line)")" || true
+ 
+ if [ "$code" != 0 ]; then
+ 	echo "man -E UTF-8 -l $1 failed with exit status $code and error output:"
+-- 
+GitLab
+
diff --git a/man.changes b/man.changes
index 29562bf..95922a2 100644
--- a/man.changes
+++ b/man.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Sep  8 19:48:53 UTC 2023 - Antonio Teixeira <antonio.teixeira@suse.com>
+
+- Add man-db-groff-1.23.0-warnings.patch
+  * Fix build errors with groff 1.23.0
+
 -------------------------------------------------------------------
 Sat Aug 26 12:20:42 UTC 2023 - Avinesh Kumar <avinesh.kumar@suse.com>
 
diff --git a/man.spec b/man.spec
index e45e4ff..b4ddc07 100644
--- a/man.spec
+++ b/man.spec
@@ -59,6 +59,8 @@ Patch9:         man-db-2.6.3-man0.dif
 Patch10:        man-db-2.9.4-alternitive.dif
 # PATCH-FEATURE-OPENSUSE -- Propose to read man pages online
 Patch12:        man-propose-online.patch
+# PATCH-FIX-UPSTREAM -- Update warning regex for groff 1.23.0
+Patch13:        man-db-groff-1.23.0-warnings.patch
 BuildRequires:  automake
 BuildRequires:  flex
 BuildRequires:  gdbm-devel
@@ -109,6 +111,7 @@ printer (using groff).
 %patch10 -b .libalernative
 rm -f configure
 %patch12 -p1 -b .p12
+%patch13 -p1 -b .p13
 
 %build
 %global optflags %{optflags} -funroll-loops -pipe -Wall