diff --git a/src/datastore/AppsDataStore.ts b/src/datastore/AppsDataStore.ts
index e7e8d4f..ee52262 100644
--- a/src/datastore/AppsDataStore.ts
+++ b/src/datastore/AppsDataStore.ts
@@ -494,6 +494,7 @@ class AppsDataStore {
     updateAppDefinitionInDb(
         appName: string,
         instanceCount: number,
+        captainDefinitionRelativeFilePath: string,
         envVars: IAppEnvVar[],
         volumes: IAppVolume[],
         nodeId: string,
@@ -564,6 +565,11 @@ class AppsDataStore {
                     appObj.instanceCount = instanceCount
                 }
 
+                if (captainDefinitionRelativeFilePath) {
+                    appObj.captainDefinitionRelativeFilePath =
+                        captainDefinitionRelativeFilePath + ''
+                }
+
                 appObj.notExposeAsWebApp = !!notExposeAsWebApp
                 appObj.containerHttpPort = containerHttpPort
                 appObj.forceSsl = !!forceSsl
diff --git a/src/routes/apps/AppDefinitionRouter.ts b/src/routes/apps/AppDefinitionRouter.ts
index 73ed62f..269047a 100644
--- a/src/routes/apps/AppDefinitionRouter.ts
+++ b/src/routes/apps/AppDefinitionRouter.ts
@@ -313,6 +313,8 @@ router.post('/update/', function(req, res, next) {
 
     let appName = req.body.appName
     let nodeId = req.body.nodeId
+    let captainDefinitionRelativeFilePath =
+        req.body.captainDefinitionRelativeFilePath
     let notExposeAsWebApp = req.body.notExposeAsWebApp
     let customNginxConfig = req.body.customNginxConfig
     let forceSsl = !!req.body.forceSsl
@@ -342,6 +344,7 @@ router.post('/update/', function(req, res, next) {
         .updateAppDefinition(
             appName,
             Number(instanceCount),
+            captainDefinitionRelativeFilePath,
             envVars,
             volumes,
             nodeId,
diff --git a/src/user/ServiceManager.ts b/src/user/ServiceManager.ts
index c7a8aac..5db0982 100644
--- a/src/user/ServiceManager.ts
+++ b/src/user/ServiceManager.ts
@@ -421,6 +421,7 @@ class ServiceManager {
     updateAppDefinition(
         appName: string,
         instanceCount: number,
+        captainDefinitionRelativeFilePath: string,
         envVars: IAppEnvVar[],
         volumes: IAppVolume[],
         nodeId: string,
@@ -516,6 +517,7 @@ class ServiceManager {
                     .updateAppDefinitionInDb(
                         appName,
                         instanceCount,
+                        captainDefinitionRelativeFilePath,
                         envVars,
                         volumes,
                         nodeId,
diff --git a/src/utils/MigrateCaptainDuckDuck.ts b/src/utils/MigrateCaptainDuckDuck.ts
index 87d0c9f..fce562c 100644
--- a/src/utils/MigrateCaptainDuckDuck.ts
+++ b/src/utils/MigrateCaptainDuckDuck.ts
@@ -321,6 +321,7 @@ export default class MigrateCaptainDuckDuck {
                                     return appStore.updateAppDefinitionInDb(
                                         appName,
                                         Number(app.instanceCount),
+                                        CaptainConstants.defaultCaptainDefinitionPath,
                                         app.envVars || [],
                                         app.volumes || [],
                                         app.nodeId || '',