diff --git a/docs/reference/Image.rst b/docs/reference/Image.rst
index 738fd8c0e..57709ce8c 100644
--- a/docs/reference/Image.rst
+++ b/docs/reference/Image.rst
@@ -52,11 +52,11 @@ Functions
     .. warning::
         To protect against potential DOS attacks caused by "`decompression bombs`_" (i.e. malicious files
         which decompress into a huge amount of data and are designed to crash or cause disruption by using up
-        a lot of memory), Pillow will issue a ``DecompressionBombWarning`` if the image is over a certain
-        limit. If desired, the warning can be turned into an error with
-        ``warnings.simplefilter('error', Image.DecompressionBombWarning)`` or suppressed entirely with
-        ``warnings.simplefilter('ignore', Image.DecompressionBombWarning)``. See also `the logging
-        documentation`_ to have warnings output to the logging facility instead of stderr.
+        a lot of memory), Pillow will issue a ``DecompressionBombWarning`` if the number of pixels in an
+        image is over a certain limit, :py:data:`PIL.Image.MAX_IMAGE_PIXELS`. If desired, the warning can be
+        turned into an error with ``warnings.simplefilter('error', Image.DecompressionBombWarning)`` or
+        suppressed entirely with ``warnings.simplefilter('ignore', Image.DecompressionBombWarning)``. See
+        also `the logging documentation`_ to have warnings output to the logging facility instead of stderr.
 
     .. _decompression bombs: https://en.wikipedia.org/wiki/Zip_bomb
     .. _the logging documentation: https://docs.python.org/3/library/logging.html#integration-with-the-warnings-module
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
index cc1cd56a5..927147956 100644
--- a/src/PIL/Image.py
+++ b/src/PIL/Image.py
@@ -81,7 +81,7 @@ class DecompressionBombError(Exception):
     pass
 
 
-# Limit to around a quarter gigabyte for a 24 bit (3 bpp) image
+# Limit to around a quarter gigabyte for a 24-bit (3 bpp) image
 MAX_IMAGE_PIXELS = int(1024 * 1024 * 1024 // 4 // 3)