diff --git a/Doc/library/struct.rst b/Doc/library/struct.rst
index 07e4c82375fc1ee..a8466d23d1f5a3c 100644
--- a/Doc/library/struct.rst
+++ b/Doc/library/struct.rst
@@ -79,7 +79,7 @@ The module defines the following exception and functions:
    size required by the format, as reflected by :func:`calcsize`.
 
 
-.. function:: unpack_from(format, /, buffer, offset=0)
+.. function:: unpack_from(format, buffer, offset=0)
 
    Unpack from *buffer* starting at position *offset*, according to the format
    string *format*.  The result is a tuple even if it contains exactly one