diff --git a/ant/org.eclipse.ant.core/forceQualifierUpdate.txt b/ant/org.eclipse.ant.core/forceQualifierUpdate.txt
index efda26a..e29aeb3 100644
--- a/ant/org.eclipse.ant.core/forceQualifierUpdate.txt
+++ b/ant/org.eclipse.ant.core/forceQualifierUpdate.txt
@@ -1,3 +1,4 @@
 # To force a version qualifier update add the bug here
 Bug 403352 - Update all parent versions to match our build stream
-Bug 465126 - Comparator errors related to Eclipse-SourceBundle
\ No newline at end of file
+Bug 465126 - Comparator errors related to Eclipse-SourceBundle
+Bug 534597 - Unanticipated comparator errors in I20180511-2000
\ No newline at end of file
diff --git a/ant/org.eclipse.ant.ui/forceQualifierUpdate.txt b/ant/org.eclipse.ant.ui/forceQualifierUpdate.txt
index 4e7f401..e29aeb3 100644
--- a/ant/org.eclipse.ant.ui/forceQualifierUpdate.txt
+++ b/ant/org.eclipse.ant.ui/forceQualifierUpdate.txt
@@ -1,3 +1,4 @@
 # To force a version qualifier update add the bug here
 Bug 403352 - Update all parent versions to match our build stream
 Bug 465126 - Comparator errors related to Eclipse-SourceBundle
+Bug 534597 - Unanticipated comparator errors in I20180511-2000
\ No newline at end of file
diff --git a/update/org.eclipse.update.configurator/forceQualifierUpdate.txt b/update/org.eclipse.update.configurator/forceQualifierUpdate.txt
index 56f1032..64803dd 100644
--- a/update/org.eclipse.update.configurator/forceQualifierUpdate.txt
+++ b/update/org.eclipse.update.configurator/forceQualifierUpdate.txt
@@ -1,2 +1,3 @@
 # To force a version qualifier update add the bug here
 Bug 403352 - Update all parent versions to match our build stream
+Bug 534597 - Unanticipated comparator errors in I20180511-2000
\ No newline at end of file