diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.coffee b/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.coffee
index 29864479a4..0a0ddc72e3 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.coffee
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.coffee
@@ -19,6 +19,9 @@ module.exports = MockDocUpdaterApi =
 
 		app.listen 3016, (error) ->
 			throw error if error?
+		.on "error", (error) ->
+			console.error "error starting MockDocStoreApi:", error.message
+			process.exit(1)
 
 MockDocUpdaterApi.run()
 
diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.coffee b/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.coffee
index 5ef3506b9c..2c87fde358 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.coffee
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.coffee
@@ -31,6 +31,10 @@ module.exports = MockDocUpdaterApi =
 
 		app.listen 3003, (error) ->
 			throw error if error?
+		.on "error", (error) ->
+			console.error "error starting MockDocUpdaterApi:", error.message
+			process.exit(1)
+
 
 MockDocUpdaterApi.run()
 
diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.coffee b/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.coffee
index 7beb67075e..97b4ea33ca 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.coffee
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.coffee
@@ -33,6 +33,9 @@ module.exports = MockWebApi =
 
 		app.listen 3000, (error) ->
 			throw error if error?
+		.on "error", (error) ->
+			console.error "error starting MockWebApiServer:", error.message
+			process.exit(1)
 
 MockWebApi.run()