diff --git a/gammaray.spec b/gammaray.spec
index 2eb9384..ddcba06 100644
--- a/gammaray.spec
+++ b/gammaray.spec
@@ -94,8 +94,10 @@ BuildRequires:  cmake(Qt5WebEngineWidgets) >= %{qt_min_version}
 %endif
 %endif
 %if 0%{?qt6}
+%if 0%{?suse_version} > 1500 || 0%{?sle_version} > 150600
 BuildRequires:  cmake(KF6CoreAddons)
 BuildRequires:  cmake(KF6SyntaxHighlighting)
+%endif
 BuildRequires:  qt6-core-private-devel >= %{qt_min_version}
 BuildRequires:  qt6-gui-private-devel >= %{qt_min_version}
 BuildRequires:  qt6-qml-private-devel >= %{qt_min_version}