diff --git a/man3/argz_add.3 b/man3/argz_add.3
index 10ebf1446..5f079aac5 100644
--- a/man3/argz_add.3
+++ b/man3/argz_add.3
@@ -102,7 +102,7 @@ will be increased by
 .BR argz_count ()
 counts the number of strings, that is,
 the number of null bytes ('\\0'), in
-.RI ( argz ,\ argz_len ).
+.RI ( argz ,\  argz_len ).
 .LP
 .BR argz_create ()
 converts a Unix-style argument vector
@@ -116,7 +116,7 @@ into an argz vector
 converts the null-terminated string
 .I str
 into an argz vector
-.RI ( *argz ,\ *argz_len )
+.RI ( *argz ,\  *argz_len )
 by breaking it up at every occurrence of the separator
 .IR sep .
 .LP
@@ -124,7 +124,7 @@ by breaking it up at every occurrence of the separator
 removes the substring pointed to by
 .I entry
 from the argz vector
-.RI ( *argz ,\ *argz_len )
+.RI ( *argz ,\  *argz_len )
 and updates
 .I *argz
 and
@@ -134,7 +134,7 @@ and
 is the opposite of
 .BR argz_create ().
 It takes the argz vector
-.RI ( argz ,\ argz_len )
+.RI ( argz ,\  argz_len )
 and fills the array starting at
 .I argv
 with pointers to the substrings, and a final NULL,