diff --git a/django/utils/image.py b/django/utils/image.py
index dd2fab6197f..8df58503386 100644
--- a/django/utils/image.py
+++ b/django/utils/image.py
@@ -102,7 +102,7 @@ def _detect_image_library():
         except ImportError as err:
             # Neither worked, so it's likely not installed.
             raise ImproperlyConfigured(
-                _("Neither Pillow nor PIL could be imported: %s" % err)
+                _("Neither Pillow nor PIL could be imported: %s") % err
             )
 
     # ``Image.alpha_composite`` was added to Pillow in SHA: e414c6 & is not
@@ -125,7 +125,7 @@ def _detect_image_library():
             except ImportError as err:
                 raise ImproperlyConfigured(
                     _("The '_imaging' module for the PIL could not be "
-                      "imported: %s" % err)
+                      "imported: %s") % err
                 )
 
     # Try to import ImageFile as well.