diff --git a/scripts/rpm-data/klayout.spec b/scripts/rpm-data/klayout.spec
index 4c5bf73ad..96ecdfdf5 100644
--- a/scripts/rpm-data/klayout.spec
+++ b/scripts/rpm-data/klayout.spec
@@ -68,6 +68,14 @@ Requires: libqt4-x11 >= 4.8.6
 %define pylib %{python3_sitearch}
 %endif
 
+%if "%{target_system}" == "opensuse_leap"
+# OpenSuSE Leap 15 requirements
+Requires:	ruby >= 2.1.9
+Requires:	python3 >= 3.4.6
+Requires: libqt4-x11 >= 4.8.7
+%define buildopt -j2
+%endif
+
 %description
 Mask layout viewer and editor for the chip design engineer.