diff --git a/src/charset.c b/src/charset.c
index 0bad471..9609299 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -538,7 +538,7 @@
 
 /*
  * Convert non-printable character to two or more printable characters in
- * "buf[]".  "charbuf" needs to be able to hold five bytes.
+ * "charbuf[]".  "charbuf" needs to be able to hold five bytes.
  * Does NOT work for multi-byte characters, c must be <= 255.
  */
     void