diff --git a/docs/changes.rst b/docs/changes.rst
index 26f3e50b..57bbf139 100644
--- a/docs/changes.rst
+++ b/docs/changes.rst
@@ -14,6 +14,7 @@ Version 0.6.3
 
 Unreleased.
 
+ - Fixed buffer overflow bug in :meth:`Image.connected_components() <wand.image.BaseImage.connected_components>` method. [:issue:`496`]
  - Added :meth:`Image.data_url() <wand.image.Image.data_url>` method. [:issue:`489`]
  - Added :attr:`Image.sampling_factors <wand.image.BaseImage.sampling_factors>` property. [:issue:`491`]
  - Added :meth:`Image.encipher() <wand.image.BaseImage.encipher>` & :meth:`Image.decipher() <wand.image.BaseImage.decipher>` methods.
diff --git a/wand/image.py b/wand/image.py
index 95462199..b544bf9c 100644
--- a/wand/image.py
+++ b/wand/image.py
@@ -3978,6 +3978,7 @@ def connected_components(self, connectivity=4, area_threshold=None,
                 src_addr = objects_ptr.value + (i * ccoi_mem_size)
                 ctypes.memmove(ctypes.addressof(temp), src_addr, ccoi_mem_size)
                 objects.append(ConnectedComponentObject(temp))
+                del temp
             objects_ptr = libmagick.RelinquishMagickMemory(objects_ptr)
         else:
             self.raise_exception()