diff --git a/src/Intervention/Image/Gd/Decoder.php b/src/Intervention/Image/Gd/Decoder.php
index 5525b4dd..313e6261 100644
--- a/src/Intervention/Image/Gd/Decoder.php
+++ b/src/Intervention/Image/Gd/Decoder.php
@@ -42,7 +42,7 @@ class Decoder extends \Intervention\Image\AbstractDecoder
                 );
         }
 
-        if ($core === false) {
+        if (empty($core)) {
             throw new \Intervention\Image\Exception\NotReadableException(
                 "Unable to read image from file ({$path})."
             );