diff --git a/man2/ptrace.2 b/man2/ptrace.2
index b030247e6..b98835f94 100644
--- a/man2/ptrace.2
+++ b/man2/ptrace.2
@@ -1066,13 +1066,14 @@ struct ptrace_syscall_info {
 .EE
 .in
 .IP
+The
 .IR op ,
 .IR arch ,
 .IR instruction_pointer ,
 and
 .I stack_pointer
 fields are defined for all kinds of ptrace system call stops.
-The rest of the structure is a union, one should read only those fields
+The rest of the structure is a union; one should read only those fields
 that are meaningful for the kind of system call stop specified by the
 .IR op
 field.