diff --git a/src/appdb.js b/src/appdb.js
index 1981993d3..831746e7b 100644
--- a/src/appdb.js
+++ b/src/appdb.js
@@ -423,14 +423,14 @@ function updateWithConstraints(id, app, constraints, callback) {
     }
 
     if ('location' in app && 'domain' in app) { // must be updated together as they are unique together
-        queries.push({ query: 'UPDATE subdomains SET subdomain = ?, domain = ? WHERE appId = ? AND type = ?', args: [ app.location, app.domain, id, exports.SUBDOMAIN_TYPE_PRIMARY ]});
-    }
+        queries.push({ query: 'DELETE FROM subdomains WHERE appId = ?', args: [ id ]}); // all locations of an app must be updated together
+        queries.push({ query: 'INSERT INTO subdomains (appId, domain, subdomain, type) VALUES (?, ?, ?, ?)', args: [ id, app.domain, app.location, exports.SUBDOMAIN_TYPE_PRIMARY ]});
 
-    if ('alternateDomains' in app) {
-        queries.push({ query: 'DELETE FROM subdomains WHERE appId = ? AND type = ?', args: [ id, exports.SUBDOMAIN_TYPE_REDIRECT ]});
-        app.alternateDomains.forEach(function (d) {
-            queries.push({ query: 'INSERT INTO subdomains (appId, domain, subdomain, type) VALUES (?, ?, ?, ?)', args: [ id, d.domain, d.subdomain, exports.SUBDOMAIN_TYPE_REDIRECT ]});
-        });
+        if ('alternateDomains' in app) {
+            app.alternateDomains.forEach(function (d) {
+                queries.push({ query: 'INSERT INTO subdomains (appId, domain, subdomain, type) VALUES (?, ?, ?, ?)', args: [ id, d.domain, d.subdomain, exports.SUBDOMAIN_TYPE_REDIRECT ]});
+            });
+        }
     }
 
     var fields = [ ], values = [ ];