diff --git a/libowlps/owlps.h b/libowlps/owlps.h
index 24d76f1..9a9f9d6 100644
--- a/libowlps/owlps.h
+++ b/libowlps/owlps.h
@@ -87,7 +87,7 @@ enum {owl_north = 1, owl_east, owl_south, owl_west} ;
 typedef uint8_t owl_direction ;
 
 
-/* Timestamp type (struct timespec clone with fix-sized fields) */
+/* Timestamp type (struct timespec clone with fixed size fields) */
 typedef struct _owl_timestamp
 {
   uint32_t tv_sec ;