diff --git a/shadow-login_defs-check.sh b/shadow-login_defs-check.sh
index e7ca2e4..958ed00 100644
--- a/shadow-login_defs-check.sh
+++ b/shadow-login_defs-check.sh
@@ -66,13 +66,7 @@ if ! test -f shadow-login_defs-check-build/stamp ; then
 # In case of shadow, variables extraction is more complicated. The list
 # depends on configure options, so we have to perform a fake build and
 # extract variables from prepreocessed sources.
-		patch <<EOF
---- shadow.spec
-+++ shadow.spec
-@@ -133,1 +133,1 @@
--make %{?_smp_mflags} V=1
-+make %{?_smp_mflags} V=1 -k CPPFLAGS="-E"
-EOF
+        sed -i '/^%make_build/i\_smp_mpflags="%{?_smp_mpflags} -k CPPFLAGS=\\"-E\\""' shadow.spec
 	fi
 
 	osc build "$@" || :
diff --git a/shadow.changes b/shadow.changes
index b8a2199..10772a0 100644
--- a/shadow.changes
+++ b/shadow.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Sep  7 15:08:19 UTC 2021 - Michael Vetter <mvetter@suse.com>
+
+- Fix shadow-login_defs-check.sh:
+  In the last update we switched from calling make to %make_build
+  macro. Using sed to adapt the spec file now.
+
 -------------------------------------------------------------------
 Wed Aug 18 15:17:52 UTC 2021 - Thorsten Kukuk <kukuk@suse.com>