diff --git a/man/systemd-repart.xml b/man/systemd-repart.xml
index 06bccad8c32..346cc88441b 100644
--- a/man/systemd-repart.xml
+++ b/man/systemd-repart.xml
@@ -443,9 +443,13 @@
IMAGE
- Instructs systemd-repart to copy the partitions from the given
- image. The partitions from the given image are synthesized into partition definitions that are
- parsed before the partition definition files.
+ Instructs systemd-repart to synthesize partition definitions from
+ the partition table in the given image. The generated definitions will copy the partitions into the
+ destination partition table. The copied partitions will have the same size, metadata and contents but
+ might have a different partition number and might be located at a different offset in the destination
+ partition table. These definitions can be combined with partition definitions read from regular
+ partition definition files. The synthesized definitions take precedence over the definitions read
+ from partition definition files.