diff --git a/typo3/sysext/extbase/Classes/Persistence/Generic/Mapper/DataMapper.php b/typo3/sysext/extbase/Classes/Persistence/Generic/Mapper/DataMapper.php
index ed281be696abc57516f4cc4436a3984930273ad5..8f7c566d7f8b7264abe0be1f64700efed00af097 100644
--- a/typo3/sysext/extbase/Classes/Persistence/Generic/Mapper/DataMapper.php
+++ b/typo3/sysext/extbase/Classes/Persistence/Generic/Mapper/DataMapper.php
@@ -239,8 +239,8 @@ class DataMapper
             } catch (NoSuchPropertyException $e) {
                 throw new Exception\NonExistentPropertyException(
                     'The type of property ' . $className . '::' . $propertyName . ' could not be identified, ' .
-                    'as property ' . $propertyName . ' is unknown to the ' . ClassSchema::class . ' instance of class .' .
-                    $className . '. Please make sure said property exists and that you cleared all caches to trigger' .
+                    'as property ' . $propertyName . ' is unknown to the ' . ClassSchema::class . ' instance of class ' .
+                    $className . '. Please make sure said property exists and that you cleared all caches to trigger ' .
                     'a new build of said ' . ClassSchema::class . ' instance.',
                     1580056272
                 );