diff --git a/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java b/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
index 4c7e771af..0819ada0e 100644
--- a/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
+++ b/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
@@ -6,6 +6,7 @@ private FlowConfig() {
 
     public static final String EXTERNAL_EVENT_MESSAGE_RESEND_WINDOW = "event.messageResendWindow";
     public static final String EXTERNAL_EVENT_MAX_RETRIES = "event.maxRetries";
+    public static final String EXTERNAL_EVENT_TRANSIENT_ERROR_TIMEOUT = "event.transientErrorRetryTimeout";
     public static final String SESSION_TIMEOUT_WINDOW = "session.timeout";
     public static final String SESSION_P2P_TTL = "session.p2pTTL";
     public static final String SESSION_FLOW_CLEANUP_TIME = "session.cleanupTime";
diff --git a/data/config-schema/src/main/java/net/corda/schema/configuration/MessagingConfig.java b/data/config-schema/src/main/java/net/corda/schema/configuration/MessagingConfig.java
index 449a14506..17158ea39 100644
--- a/data/config-schema/src/main/java/net/corda/schema/configuration/MessagingConfig.java
+++ b/data/config-schema/src/main/java/net/corda/schema/configuration/MessagingConfig.java
@@ -62,7 +62,6 @@ private Subscription() {
         public static final String MEDIATOR_PROCESSING_MIN_POOL_RECORD_COUNT = SUBSCRIPTION + ".mediator.minPoolRecordCount";
         public static final String MEDIATOR_PROCESSING_POLL_TIMEOUT = SUBSCRIPTION + ".mediator.pollTimeout";
         public static final String MEDIATOR_PROCESSING_PROCESSOR_TIMEOUT = SUBSCRIPTION + ".mediator.processorTimeout";
-        public static final String MEDIATOR_PROCESSING_TRANSIENT_ERROR_TIMEOUT = SUBSCRIPTION + ".mediator.transientErrorRetryTimeout";
     }
 
     /**