diff --git a/pulseaudio-equalizer.spec b/pulseaudio-equalizer.spec
index 429123f..da155d3 100644
--- a/pulseaudio-equalizer.spec
+++ b/pulseaudio-equalizer.spec
@@ -20,7 +20,7 @@ Name:           pulseaudio-equalizer
 Version:        2.7.0.2
 Release:        0
 Summary:        PulseAudio's LADSPA plugin graphical user interface
-License:        GPL-3.0-or-later
+License:        GPL-3.0+
 Group:          Productivity/Multimedia/Sound/Mixers
 Url:            https://ubuntuforums.org/showthread.php?t=1308838
 Source:         https://launchpad.net/~nilarimogard/+archive/ubuntu/webupd8/+files/%{name}_%{version}.orig.tar.gz
@@ -44,6 +44,7 @@ Patch7:         0007-pygobject3-port.patch
 Patch8:         0008-fix-locale-issues.patch
 # PATCH-FIX-UPSTREAM 0009-do-not-zero-volume.patch sor.alexei@meowr.ru -- Fix volume zeroing on fresh PulseAudio.
 Patch9:         0009-do-not-zero-volume.patch
+BuildRequires:  gobject-introspection-devel
 BuildRequires:  update-desktop-files
 Requires:       ladspa-swh-plugins
 Requires:       pulseaudio >= 4.0