diff --git a/doc/zzuf.1 b/doc/zzuf.1
index a0eb24f..2df82c0 100644
--- a/doc/zzuf.1
+++ b/doc/zzuf.1
@@ -108,7 +108,7 @@ backslash (\(oq\\\(cq)
 .RE
 .IP
 You can use \(oq\fB-\fR\(cq to specify ranges. For instance, to protect all
-bytes from '\\001' to '/', use \(oq\fB\-P\ \(aq\\001-/\(aq\fR\(cq.
+bytes from '\\001' to '/', use \(oq\fB\-P\ \(dq\\001-/\(dq\fR\(cq.
 
 The statistical outcome of this option should not be overlooked: if characters
 are protected, the effect of the \(oq\fB\-r\fR\(cq flag will vary depending