diff --git a/installations/InstallationsSnippets/AppDelegate.swift b/installations/InstallationsSnippets/AppDelegate.swift
index 91603fcf..0258c6d6 100644
--- a/installations/InstallationsSnippets/AppDelegate.swift
+++ b/installations/InstallationsSnippets/AppDelegate.swift
@@ -39,13 +39,14 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
   }
     
+  var installationIDObserver: NSObjectProtocol?
   func handleInstallationIDChange() {
     // [START handle_installation_id_change]
-    NotificationCenter.default.addObserver(forName: .InstallationIDDidChange,
-                                            object: nil,
-                                             queue: nil) { (notification) in
+    installationIDObserver = NotificationCenter.default.addObserver(forName: .InstallationIDDidChange,
+                                                                    object: nil,
+                                                                    queue: nil) { [weak self] (notification) in
       // Fetch new Installation ID
-      self.fetchInstallationToken()
+      self?.fetchInstallationToken()
     }
     // [END handle_installation_id_change]
   }
diff --git a/installations/InstallationsSnippets/ObjCSnippets.m b/installations/InstallationsSnippets/ObjCSnippets.m
index d51c6dee..16620dd1 100644
--- a/installations/InstallationsSnippets/ObjCSnippets.m
+++ b/installations/InstallationsSnippets/ObjCSnippets.m
@@ -18,16 +18,22 @@
 
 #import "ObjCSnippets.h"
 
+@interface ObjCSnippets ()
+@property(nonatomic, nullable) id<NSObject> installationIDObserver;
+@end
+
 @implementation ObjCSnippets
 
 - (void)handleInstallationIDChange {
   // [START handle_installation_id_change]
-  [[NSNotificationCenter defaultCenter] addObserverForName: FIRInstallationIDDidChangeNotification
-                                                    object:nil
-                                                     queue:nil
-                                                usingBlock:^(NSNotification * _Nonnull notification) {
+  __weak __auto_type weakSelf = self;
+  self.installationIDObserver =
+      [[NSNotificationCenter defaultCenter] addObserverForName: FIRInstallationIDDidChangeNotification
+                                                        object:nil
+                                                         queue:nil
+                                                    usingBlock:^(NSNotification * _Nonnull notification) {
     // Fetch new Installation ID
-    [self fetchInstallationsID];
+    [weakSelf fetchInstallationsID];
   }];
   // [END handle_installation_id_change]
 }