diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2
index dade63166..42bf7a77f 100644
--- a/man2/ioctl_userfaultfd.2
+++ b/man2/ioctl_userfaultfd.2
@@ -108,15 +108,15 @@ operations available.
 For Linux kernel versions before 4.11, the
 .I features
 field must be initialized to zero before the call to
-.I UFFDIO_API
-, and zero (i.e., no feature bits) is placed in the
+.IR UFFDIO_API ,
+and zero (i.e., no feature bits) is placed in the
 .I features
 field by the kernel upon return from
 .BR ioctl (2).
 
 Starting from Linux 4.11, the
 .I features
-field can be used to to ask whether particular features are supported
+field can be used to ask whether particular features are supported
 and explicitly enable userfaultfd features that are disabled by default.
 The kernel always reports all the available features in the
 .I features