diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28dc3158d..a4101848d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## 1.22.2
 
+### Changes
+- Alter jpeg priority with the PIL source ([#1191](../../pull/1191))
+
 ### Bug Fixes
 - Fix NeededInitPrefix namespace errors ([#1190](../../pull/1190))
 
diff --git a/sources/pil/large_image_source_pil/__init__.py b/sources/pil/large_image_source_pil/__init__.py
index 6dc3ac6f1..282204dfd 100644
--- a/sources/pil/large_image_source_pil/__init__.py
+++ b/sources/pil/large_image_source_pil/__init__.py
@@ -85,13 +85,17 @@ class PILFileTileSource(FileTileSource, metaclass=LruCacheMetaclass):
     cacheName = 'tilesource'
     name = 'pil'
 
-    # Although PIL is always a fallback source, prefer it to other fallback
+    # Although PIL is mostly a fallback source, prefer it to other fallback
     # sources
     extensions = {
-        None: SourcePriority.FALLBACK_HIGH
+        None: SourcePriority.FALLBACK_HIGH,
+        'jpg': SourcePriority.LOW,
+        'jpeg': SourcePriority.LOW,
+        'jpe': SourcePriority.LOW,
     }
     mimeTypes = {
-        None: SourcePriority.FALLBACK_HIGH
+        None: SourcePriority.FALLBACK_HIGH,
+        'image/jpeg': SourcePriority.LOW,
     }
 
     def __init__(self, path, maxSize=None, **kwargs):