diff --git a/README.md b/README.md
index d3ec328f..87762c4b 100644
--- a/README.md
+++ b/README.md
@@ -1067,7 +1067,7 @@ OPTIONS:
         --offset
             Offset second UF2 by amount
         <offset>
-            offset amount (default to 0)
+            offset amount (default to 0x0)
     Partition options
         --partition
             Place second UF2 in partition (first UF2 must contain a partition table)
diff --git a/main.cpp b/main.cpp
index d53d5301..e0dc54fd 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1639,7 +1639,7 @@ struct uf2_combine_command : public cmd {
                 ).force_expand_help(true) % "UF2 Family options" +
                 (
                     option("--offset").set(settings.uf2.offset_set) % "Offset second UF2 by amount" &
-                        hex("offset").set(settings.uf2.offset) % "offset amount (default to 0)"
+                        hex("offset").set(settings.uf2.offset) % "offset amount (default to 0x0)"
                 ).force_expand_help(true) % "Offset options" +
                 (
                     option("--partition").set(settings.uf2.partition_set) % "Place second UF2 in partition (first UF2 must contain a partition table)" &