diff --git a/containers/Dockerfile.kde b/containers/Dockerfile.kde
index 369e80d..feb2189 100644
--- a/containers/Dockerfile.kde
+++ b/containers/Dockerfile.kde
@@ -63,7 +63,7 @@ COPY etc /etc
 COPY usr /usr
 
 # fix-up kconfig path
-RUN sed -i "/SCX_FLAGS=/ s/$/ --kconfig \/usr\/lib\/modules\/$(uname -r)\/config/" /etc/default/scx
+RUN sed -i "/SCX_FLAGS=/ s/$/ --kconfig \/usr\/lib\/modules\/$(rpm -qa kernel | sed 's/kernel-//g')\/config/" /etc/default/scx
 
 # Apply hardened firewall configuration
 RUN firewall-offline-cmd --set-default-zone public