diff --git a/containers/Dockerfile.kde b/containers/Dockerfile.kde
index 5e9710e..94fe782 100644
--- a/containers/Dockerfile.kde
+++ b/containers/Dockerfile.kde
@@ -31,6 +31,9 @@ COPY --from=scx-build /build/scx/services/scx.service /usr/lib/systemd/system/sc
 # dnf configuration has to be in effect during build
 COPY etc/dnf /etc/dnf
 
+# fix-up kconfig path
+RUN sed -i "/SCX_FLAGS=/ s/$/ --kconfig \/usr\/lib\/modules\/$(uname -r)\/config/" /etc/default/scx
+
 # Add rpmfusion repositories
 RUN dnf5 -y install https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm