diff --git a/ios/RNCallKeep/RNCallKeep.m b/ios/RNCallKeep/RNCallKeep.m
index 475cd623..44b5a657 100644
--- a/ios/RNCallKeep/RNCallKeep.m
+++ b/ios/RNCallKeep/RNCallKeep.m
@@ -81,6 +81,7 @@ + (id)allocWithZone:(NSZone *)zone {
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
         sharedInstance = [super allocWithZone:zone];
+        sharedInstance->_delayedEvents = [NSMutableArray array];
     });
     return sharedInstance;
 }