diff --git a/MixpanelDemo/MixpanelDemoTests/MixpanelDemoTests.swift b/MixpanelDemo/MixpanelDemoTests/MixpanelDemoTests.swift
index fea87172..0d4b8365 100644
--- a/MixpanelDemo/MixpanelDemoTests/MixpanelDemoTests.swift
+++ b/MixpanelDemo/MixpanelDemoTests/MixpanelDemoTests.swift
@@ -538,6 +538,17 @@ class MixpanelDemoTests: MixpanelBaseTests {
                       "clear super properties failed")
         removeDBfile(testMixpanel.apiToken)
     }
+    
+    func testSettingSuperPropertiesWhenInit() {
+        let testMixpanel = Mixpanel.initialize(token: randomId(), flushInterval: 60, superProperties: ["mp_lib": "flutter"])
+        waitForTrackingQueue(testMixpanel)
+        XCTAssertEqual(testMixpanel.currentSuperProperties()["mp_lib"] as? String, "flutter",
+                       "register super properties in init failed")
+        testMixpanel.track(event: "e1")
+        let e = eventQueue(token: testMixpanel.apiToken).last!
+        let p = e["properties"] as! InternalProperties
+        XCTAssertNotNil(p["mp_lib"], "flutter")
+    }
 
     func testInvalidPropertiesTrack() {
         let testMixpanel = Mixpanel.initialize(token: randomId(), flushInterval: 60)
diff --git a/Sources/Mixpanel.swift b/Sources/Mixpanel.swift
index 317f9eee..88123d91 100644
--- a/Sources/Mixpanel.swift
+++ b/Sources/Mixpanel.swift
@@ -39,12 +39,14 @@ open class Mixpanel {
                                flushInterval: Double = 60,
                                instanceName: String = UUID().uuidString,
                                optOutTrackingByDefault: Bool = false,
-                               trackAutomaticEvents: Bool = true) -> MixpanelInstance {
+                               trackAutomaticEvents: Bool = true,
+                               superProperties: Properties? = nil) -> MixpanelInstance {
         return MixpanelManager.sharedInstance.initialize(token: apiToken,
                                                          flushInterval: flushInterval,
                                                          instanceName: instanceName,
                                                          optOutTrackingByDefault: optOutTrackingByDefault,
-                                                         trackAutomaticEvents: trackAutomaticEvents)
+                                                         trackAutomaticEvents: trackAutomaticEvents,
+                                                         superProperties: superProperties)
     }
     #else
     /**
@@ -143,12 +145,14 @@ class MixpanelManager {
                     flushInterval: Double,
                     instanceName: String,
                     optOutTrackingByDefault: Bool = false,
-                    trackAutomaticEvents: Bool = true) -> MixpanelInstance {
+                    trackAutomaticEvents: Bool = true,
+                    superProperties: Properties? = nil) -> MixpanelInstance {
         let instance = MixpanelInstance(apiToken: apiToken,
                                         flushInterval: flushInterval,
                                         name: instanceName,
                                         optOutTrackingByDefault: optOutTrackingByDefault,
-                                        trackAutomaticEvents: trackAutomaticEvents)
+                                        trackAutomaticEvents: trackAutomaticEvents,
+                                        superProperties: superProperties)
         mainInstance = instance
         readWriteLock.write {
             instances[instanceName] = instance
diff --git a/Sources/MixpanelInstance.swift b/Sources/MixpanelInstance.swift
index b7cb3873..b9284e53 100644
--- a/Sources/MixpanelInstance.swift
+++ b/Sources/MixpanelInstance.swift
@@ -214,7 +214,8 @@ open class MixpanelInstance: CustomDebugStringConvertible, FlushDelegate, AEDele
     #endif // DECIDE
     
     #if !os(OSX) && !os(watchOS)
-    init(apiToken: String?, flushInterval: Double, name: String, optOutTrackingByDefault: Bool = false, trackAutomaticEvents: Bool = true) {
+    init(apiToken: String?, flushInterval: Double, name: String, optOutTrackingByDefault: Bool = false,
+         trackAutomaticEvents: Bool = true, superProperties: Properties? = nil) {
         if let apiToken = apiToken, !apiToken.isEmpty {
             self.apiToken = apiToken
         }
@@ -273,6 +274,11 @@ open class MixpanelInstance: CustomDebugStringConvertible, FlushDelegate, AEDele
         if optOutTrackingByDefault && (hasOptedOutTracking() || optOutStatus == nil) {
             optOutTracking()
         }
+        
+        if let superProperties = superProperties {
+            registerSuperProperties(superProperties)
+        }
+        
         MixpanelPersistence.saveAutomacticEventsEnabledFlag(value: trackAutomaticEvents,
                                                             fromDecide: false,
                                                             apiToken: self.apiToken)