diff --git a/debian/changelog b/debian/changelog
index 743c20aa2..8297ad3f1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -8,6 +8,7 @@ linux (4.15~rc5-1~exp1) UNRELEASED; urgency=medium
   * lockdown: Update calls to kernel_is_locked_down() in "mtd: Disable slram and
     phram when locked down"
   * cpupower: Move library to multiarch directory
+  * [rt] Disable until it is updated for 4.15 or later
 
  -- Ben Hutchings <ben@decadent.org.uk>  Tue, 26 Dec 2017 16:25:55 +0000
 
diff --git a/debian/config/defines b/debian/config/defines
index 056a2b51e..143ecdea3 100644
--- a/debian/config/defines
+++ b/debian/config/defines
@@ -110,7 +110,7 @@ debug-info: true
 signed-modules: false
 
 [featureset-rt_base]
-enabled: true
+enabled: false
 
 [description]
 part-long-up: This kernel is not suitable for SMP (multi-processor,