diff --git a/Tests/images/missing_background.gif b/Tests/images/missing_background.gif
new file mode 100644
index 000000000..550d68d81
Binary files /dev/null and b/Tests/images/missing_background.gif differ
diff --git a/Tests/images/missing_background_first_frame.gif b/Tests/images/missing_background_first_frame.gif
new file mode 100644
index 000000000..be2c95b99
Binary files /dev/null and b/Tests/images/missing_background_first_frame.gif differ
diff --git a/Tests/test_file_gif.py b/Tests/test_file_gif.py
index 94fc95b05..6d92bde76 100644
--- a/Tests/test_file_gif.py
+++ b/Tests/test_file_gif.py
@@ -864,3 +864,11 @@ def test_extents():
         assert im.size == (100, 100)
         im.seek(1)
         assert im.size == (150, 150)
+
+
+def test_missing_background():
+    # The Global Color Table Flag isn't set, so there is no background color index,
+    # but the disposal method is "Restore to background color"
+    with Image.open("Tests/images/missing_background.gif") as im:
+        im.seek(1)
+        assert_image_equal_tofile(im, "Tests/images/missing_background_first_frame.gif")
diff --git a/src/PIL/GifImagePlugin.py b/src/PIL/GifImagePlugin.py
index 48685c883..3c4cb6187 100644
--- a/src/PIL/GifImagePlugin.py
+++ b/src/PIL/GifImagePlugin.py
@@ -270,14 +270,14 @@ class GifImageFile(ImageFile.ImageFile):
 
                 Image._decompression_bomb_check(dispose_size)
                 self.dispose = Image.core.fill(
-                    "P", dispose_size, self.info["background"]
+                    "P", dispose_size, self.info.get("background", 0)
                 )
             else:
                 # replace with previous contents
                 if self.im:
                     # only dispose the extent in this frame
                     self.dispose = self._crop(self.im, self.dispose_extent)
-        except (AttributeError, KeyError):
+        except AttributeError:
             pass
 
         if interlace is not None: