diff --git a/src/ol/coordinate.js b/src/ol/coordinate.js
index a39f354aca..41f3f8b546 100644
--- a/src/ol/coordinate.js
+++ b/src/ol/coordinate.js
@@ -280,6 +280,9 @@ ol.coordinate.squaredDistanceToSegment = function(coordinate, segment) {
 
 
 /**
+ * Format a geographic coordinate with the hemisphere, degrees, minutes, and
+ * seconds.
+ *
  * Example:
  *
  *     var coord = [7.85, 47.983333];
@@ -301,6 +304,8 @@ ol.coordinate.toStringHDMS = function(coordinate) {
 
 
 /**
+ * Format a coordinate as a comma delimited string.
+ *
  * Example without specifying fractional digits:
  *
  *     var coord = [7.85, 47.983333];