diff --git a/desktop/mate/mate-system-monitor/pspec.xml b/desktop/mate/mate-system-monitor/pspec.xml
index 2e687be0a9..29465668f0 100644
--- a/desktop/mate/mate-system-monitor/pspec.xml
+++ b/desktop/mate/mate-system-monitor/pspec.xml
@@ -27,6 +27,7 @@
mate-common
intltool
itstool
+ python3-devel