diff --git a/wireless-regdb.changes b/wireless-regdb.changes
index 9618c89..2384ab5 100644
--- a/wireless-regdb.changes
+++ b/wireless-regdb.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Sep 18 10:24:11 UTC 2023 - Ivan Ivanov <ivan.ivanov@suse.com>
+
+- Define %{_firmwaredir} if not defined. This fixes RPM build errors.
+
 -------------------------------------------------------------------
 Thu Sep  7 08:26:03 UTC 2023 - Martin Pluskal <mpluskal@suse.com>
 
diff --git a/wireless-regdb.spec b/wireless-regdb.spec
index 3b8950f..c113dc2 100644
--- a/wireless-regdb.spec
+++ b/wireless-regdb.spec
@@ -16,6 +16,8 @@
 #
 
 
+%{?!_firmwaredir:%define _firmwaredir /lib/firmware}
+
 Name:           wireless-regdb
 Version:        20230901
 Release:        0