diff --git a/lib/openpam_readlinev.c b/lib/openpam_readlinev.c
index 5099e34..3d20d4e 100644
--- a/lib/openpam_readlinev.c
+++ b/lib/openpam_readlinev.c
@@ -117,7 +117,7 @@ openpam_readlinev(FILE *f, int *lineno, int *lenp)
  * If =lenp is not =NULL, the number of words on the line is stored in the
  * variable to which it points.
  *
- *RETURN VALUES
+ * RETURN VALUES
  *
  * If successful, the =openpam_readlinev function returns a pointer to a
  * dynamically allocated array of pointers to individual dynamically
diff --git a/lib/openpam_readword.c b/lib/openpam_readword.c
index a64189d..f81506a 100644
--- a/lib/openpam_readword.c
+++ b/lib/openpam_readword.c
@@ -176,7 +176,7 @@ openpam_readword(FILE *f, int *lineno, size_t *lenp)
  * If =lenp is not =NULL, the length of the word (after quotes and
  * backslashes have been removed) is stored in the variable it points to.
  *
- *RETURN VALUES
+ * RETURN VALUES
  *
  * If successful, the =openpam_readword function returns a pointer to a
  * dynamically allocated NUL-terminated string containing the first word
@@ -193,7 +193,7 @@ openpam_readword(FILE *f, int *lineno, size_t *lenp)
  * backslash escape is in effect, it sets :errno to =EINVAL and returns
  * =NULL.
  *
- *IMPLEMENTATION NOTES
+ * IMPLEMENTATION NOTES
  *
  * The parsing rules are intended to be equivalent to the normal POSIX
  * shell quoting rules.