diff --git a/src/apps.js b/src/apps.js
index 3eb444b63..1d4e25d0b 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -152,7 +152,6 @@ AppsError.ALREADY_EXISTS = 'Already Exists';
 AppsError.NOT_FOUND = 'Not Found';
 AppsError.BAD_FIELD = 'Bad Field';
 AppsError.BAD_STATE = 'Bad State';
-AppsError.PORT_RESERVED = 'Port Reserved';
 AppsError.PORT_CONFLICT = 'Port Conflict';
 AppsError.LOCATION_CONFLICT = 'Location Conflict';
 AppsError.PLAN_LIMIT = 'Plan Limit';
@@ -201,7 +200,7 @@ function validatePortBindings(portBindings, manifest) {
 
         const hostPort = portBindings[portName];
         if (!Number.isInteger(hostPort)) return new AppsError(AppsError.BAD_FIELD, `${hostPort} is not an integer`);
-        if (RESERVED_PORTS.indexOf(hostPort) !== -1) return new AppsError(AppsError.PORT_RESERVED, `Port ${hostPort} is reserved.`);
+        if (RESERVED_PORTS.indexOf(hostPort) !== -1) return new AppsError(AppsError.PORT_CONFLICT, `Port ${hostPort} is reserved.`);
         if (hostPort <= 1023 || hostPort > 65535) return new AppsError(AppsError.BAD_FIELD, `${hostPort} is not in permitted range`);
     }
 
diff --git a/src/routes/apps.js b/src/routes/apps.js
index fba45486d..561b90403 100644
--- a/src/routes/apps.js
+++ b/src/routes/apps.js
@@ -41,8 +41,8 @@ function toHttpError(appError) {
     case AppsError.NOT_FOUND:
         return new HttpError(404, appError);
     case AppsError.ALREADY_EXISTS:
-    case AppsError.PORT_RESERVED:
     case AppsError.PORT_CONFLICT:
+    case AppsError.LOCATION_CONFLICT:
     case AppsError.BAD_STATE:
         return new HttpError(409, appError);
     case AppsError.BAD_FIELD: