diff --git a/SwiftSignalKit/Subscriber.swift b/SwiftSignalKit/Subscriber.swift
index 70d5ed832d..956af6e8cc 100644
--- a/SwiftSignalKit/Subscriber.swift
+++ b/SwiftSignalKit/Subscriber.swift
@@ -100,11 +100,18 @@ public final class Subscriber<T, E> {
         
         var disposeDisposable: Disposable? = nil
         
+        var next: ((T) -> Void)?
+        var error: ((E) -> Void)?
+        var completed: (() -> Void)?
+        
         pthread_mutex_lock(&self.lock)
         if !self.terminated {
             action = self.completed
+            next = self.next
             self.next = nil
+            error = self.error
             self.error = nil
+            completed = self.completed
             self.completed = nil
             self.terminated = true
             
@@ -113,6 +120,16 @@ public final class Subscriber<T, E> {
         }
         pthread_mutex_unlock(&self.lock)
         
+        if let next = next {
+            withExtendedLifetime(next, {})
+        }
+        if let error = error {
+            withExtendedLifetime(error, {})
+        }
+        if let completed = completed {
+            withExtendedLifetime(completed, {})
+        }
+        
         if action != nil {
             action()
         }