diff --git a/etiquette/helpers.py b/etiquette/helpers.py
index 4acef7b..4b6954d 100644
--- a/etiquette/helpers.py
+++ b/etiquette/helpers.py
@@ -218,6 +218,7 @@ def _generate_image_thumbnail(filepath, max_width, max_height) -> PIL.Image:
     if not os.path.isfile(filepath):
         raise FileNotFoundError(filepath)
     image = PIL.Image.open(filepath)
+    image = imagetools.convert_to_srgb(image)
     (image, exif) = imagetools.rotate_by_exif(image)
     (image_width, image_height) = image.size
     (new_width, new_height) = imagetools.fit_into_bounds(