diff --git a/jslib b/jslib
index bc43c68e..b0b6ad4e 160000
--- a/jslib
+++ b/jslib
@@ -1 +1 @@
-Subproject commit bc43c68eb98799c8b9e30a1dd8f60431dc1236c6
+Subproject commit b0b6ad4ebda9adc7f0ad403c7c24648ec9887c0b
diff --git a/src/app/tabs/settings.component.html b/src/app/tabs/settings.component.html
index 649587ff..1bf06600 100644
--- a/src/app/tabs/settings.component.html
+++ b/src/app/tabs/settings.component.html
@@ -190,6 +190,13 @@
                         <label class="form-check-label" for="removeDisabled">{{'removeDisabled' | i18n}}</label>
                     </div>
                 </div>
+                <div class="form-group">
+                    <div class="form-check">
+                        <input class="form-check-input" type="checkbox" id="overwriteExisting"
+                            [(ngModel)]="sync.overwriteExisting" name="OverwriteExisting">
+                        <label class="form-check-label" for="overwriteExisting">{{'overwriteExisting' | i18n}}</label>
+                    </div>
+                </div>
                 <div [hidden]="directory != directoryType.Ldap">
                     <div [hidden]="ldap.ad">
                         <div class="form-group">
diff --git a/src/locales/en/messages.json b/src/locales/en/messages.json
index c4c04ead..0436352e 100644
--- a/src/locales/en/messages.json
+++ b/src/locales/en/messages.json
@@ -577,5 +577,8 @@
                 "example": "server"
             }
         }
+    },
+    "overwriteExisting": {
+        "message": "Overwrite existing organization users based on current sync settings."
     }
 }
diff --git a/src/models/syncConfiguration.ts b/src/models/syncConfiguration.ts
index 87c8506d..7da06bd7 100644
--- a/src/models/syncConfiguration.ts
+++ b/src/models/syncConfiguration.ts
@@ -5,6 +5,7 @@ export class SyncConfiguration {
     userFilter: string;
     groupFilter: string;
     removeDisabled = false;
+    overwriteExisting = false;
     // Ldap properties
     groupObjectClass: string;
     userObjectClass: string;
diff --git a/src/services/sync.service.ts b/src/services/sync.service.ts
index a90a89c5..2c25de80 100644
--- a/src/services/sync.service.ts
+++ b/src/services/sync.service.ts
@@ -48,7 +48,7 @@ export class SyncService {
 
         this.messagingService.send('dirSyncStarted');
         try {
-            const entries = await directoryService.getEntries(force, test);
+            const entries = await directoryService.getEntries(force || syncConfig.overwriteExisting, test);
             let groups = entries[0];
             let users = entries[1];
 
@@ -65,7 +65,7 @@ export class SyncService {
                 return [groups, users];
             }
 
-            const req = this.buildRequest(groups, users, syncConfig.removeDisabled);
+            const req = this.buildRequest(groups, users, syncConfig.removeDisabled, syncConfig.overwriteExisting);
             const reqJson = JSON.stringify(req);
 
             let hash: string = null;
@@ -128,8 +128,10 @@ export class SyncService {
         }
     }
 
-    private buildRequest(groups: GroupEntry[], users: UserEntry[], removeDisabled: boolean): ImportDirectoryRequest {
+    private buildRequest(groups: GroupEntry[], users: UserEntry[], removeDisabled: boolean,
+        overwriteExisting: boolean): ImportDirectoryRequest {
         const model = new ImportDirectoryRequest();
+        model.overwriteExisting = overwriteExisting;
 
         if (groups != null) {
             for (const g of groups) {