diff --git a/foma.changes b/foma.changes
index 7e6adc9..d160a63 100644
--- a/foma.changes
+++ b/foma.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed May 19 15:14:43 UTC 2021 - Fridrich Strba <fstrba@suse.com>
+
+- Define conditionally make_build to fix build on systems that do
+  not have that macro
+
 -------------------------------------------------------------------
 Mon Mar 02 12:07:36 UTC 2020 - tchvatal@suse.com
 
diff --git a/foma.spec b/foma.spec
index 2360dc8..c3af144 100644
--- a/foma.spec
+++ b/foma.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package foma
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,6 +16,7 @@
 #
 
 
+%{!?make_build:%global make_build make %{?_smp_mflags}}
 %define libname	libfoma0
 Name:           foma
 Version:        0.9.18+git20200221.5e5521e