diff --git a/SDWebImage/MKAnnotationView+WebCache.m b/SDWebImage/MKAnnotationView+WebCache.m
index 0c9dd75..f0d2c1c 100644
--- a/SDWebImage/MKAnnotationView+WebCache.m
+++ b/SDWebImage/MKAnnotationView+WebCache.m
@@ -46,11 +46,14 @@ static char operationKey;
     
     if (url)
     {
+        __weak MKAnnotationView *wself = self;
         id<SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, BOOL fromCache, BOOL finished)
         {
+            __strong MKAnnotationView *sself = wself;
+            if (!sself) return;
             if (image)
             {
-                self.image = image;
+                sself.image = image;
             }
             if (completedBlock && finished)
             {
diff --git a/SDWebImage/UIButton+WebCache.m b/SDWebImage/UIButton+WebCache.m
index 717da24..53c99a5 100644
--- a/SDWebImage/UIButton+WebCache.m
+++ b/SDWebImage/UIButton+WebCache.m
@@ -45,11 +45,14 @@ static char operationKey;
 
     if (url)
     {
+        __weak UIButton *wself = self;
         id<SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished)
         {
+            __strong UIButton *sself = wself;
+            if (!sself) return;
             if (image)
             {
-                [self setImage:image forState:state];
+                [sself setImage:image forState:state];
             }
             if (completedBlock && finished)
             {
@@ -93,11 +96,14 @@ static char operationKey;
 
     if (url)
     {
+        __weak UIButton *wself = self;
         id<SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished)
         {
+            __strong UIButton *sself = wself;
+            if (!sself) return;
             if (image)
             {
-                [self setBackgroundImage:image forState:state];
+                [sself setBackgroundImage:image forState:state];
             }
             if (completedBlock && finished)
             {
diff --git a/SDWebImage/UIImageView+WebCache.m b/SDWebImage/UIImageView+WebCache.m
index 4e334d1..01eab54 100644
--- a/SDWebImage/UIImageView+WebCache.m
+++ b/SDWebImage/UIImageView+WebCache.m
@@ -51,12 +51,15 @@ static char operationKey;
     
     if (url)
     {
+        __weak UIImageView *wself = self;
         id<SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:url options:options progress:progressBlock completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished)
         {
+            __strong UIImageView *sself = wself;
+            if (!sself) return;
             if (image)
             {
-                self.image = image;
-                [self setNeedsLayout];
+                sself.image = image;
+                [sself setNeedsLayout];
             }
             if (completedBlock && finished)
             {