diff --git a/SDWebImage/SDWebImageCompat.m b/SDWebImage/SDWebImageCompat.m
index 7f911535e..8c7d345ab 100644
--- a/SDWebImage/SDWebImageCompat.m
+++ b/SDWebImage/SDWebImageCompat.m
@@ -13,6 +13,10 @@
 #endif
 
 inline UIImage *SDScaledImageForKey(NSString *key, UIImage *image) {
+    if (!image) {
+        return nil;
+    }
+    
     if ([image.images count] > 0) {
         NSMutableArray *scaledImages = [NSMutableArray array];