diff --git a/features/org.eclipse.equinox.sdk/forceQualifierUpdate.txt b/features/org.eclipse.equinox.sdk/forceQualifierUpdate.txt
index 9ad4c3a..fae5abc 100644
--- a/features/org.eclipse.equinox.sdk/forceQualifierUpdate.txt
+++ b/features/org.eclipse.equinox.sdk/forceQualifierUpdate.txt
@@ -7,4 +7,5 @@
 Bug 483585 - I20151203-0800 build failed due to resolution problems
 Bug 506597 - Build failure on I20161026-2000
 Bug 528810 - Compilation failure in I20171214-2000
-Bug 533464 - Build failure in I20180411-0530
\ No newline at end of file
+Bug 533464 - Build failure in I20180411-0530
+Bug 444188 - EclipsePreferences is not thread safe
\ No newline at end of file