diff --git a/package/openscap/0002-OVAL-probes-add-missing-header-include.patch b/package/openscap/0002-OVAL-probes-add-missing-header-include.patch
new file mode 100644
index 0000000000..0c7598b2b5
--- /dev/null
+++ b/package/openscap/0002-OVAL-probes-add-missing-header-include.patch
@@ -0,0 +1,48 @@
+From ab69b76cb40d6f35d252246e965245804b17591f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Alexis=20Lothor=C3=A9?= <alexis.lothore@bootlin.com>
+Date: Thu, 13 Aug 2026 15:18:15 +0200
+Subject: [PATCH] OVAL/probes: add missing header include
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Openscap build can fail with the following log when
+-Wimplicit-function-declaration is turned into an error:
+
+In file included from [...]/src/OVAL/probes/unix/linux/systemdunitproperty_probe.c:38:
+[...]/src/OVAL/probes/unix/linux/systemdshared.h: In function ‘get_all_systemd_units’:
+[...]/src/OVAL/probes/unix/linux/systemdshared.h:188:50: error: implicit declaration of function ‘basename’; did you mean ‘rename’? [-Wimplicit-function-declaration]
+  188 |                 char *unit_name_s = oscap_strdup(basename(value.str));
+      |                                                  ^~~~~~~~
+      |                                                  rename
+In file included from [...]/src/OVAL/probes/unix/linux/systemdunitdependency_probe.c:37:
+[...]/src/OVAL/probes/unix/linux/systemdshared.h: In function ‘get_all_systemd_units’:
+[...]/src/OVAL/probes/unix/linux/systemdshared.h:188:50: error: implicit declaration of function ‘basename’; did you mean ‘rename’? [-Wimplicit-function-declaration]
+  188 |                 char *unit_name_s = oscap_strdup(basename(value.str));
+      |                                                  ^~~~~~~~
+      |                                                  rename
+
+Add the missing header include pointed by `man 3 basename` to fix the
+error.
+
+Upstream: https://github.com/OpenSCAP/openscap/commit/ab69b76cb40d6f35d252246e965245804b17591f
+Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
+---
+ src/OVAL/probes/unix/linux/systemdshared.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/OVAL/probes/unix/linux/systemdshared.h b/src/OVAL/probes/unix/linux/systemdshared.h
+index 879ae5be9d6c..57e94ca6f49e 100644
+--- a/src/OVAL/probes/unix/linux/systemdshared.h
++++ b/src/OVAL/probes/unix/linux/systemdshared.h
+@@ -35,6 +35,7 @@
+ #include <config.h>
+ #endif
+ 
++#include <libgen.h>
+ #include <limits.h>
+ #include <stdio.h>
+ #include "common/debug_priv.h"
+-- 
+2.55.0
+