diff --git a/src/eccodes.h b/src/eccodes.h
index b5d42c955..e2ddb6588 100644
--- a/src/eccodes.h
+++ b/src/eccodes.h
@@ -606,9 +606,9 @@ int codes_grib_get_data(const codes_handle* h, double* lats, double* lons, doubl
  * Get the next value from a geoiterator.
  *
  * @param i           : the geoiterator
- * @param lat         : on output latitude in degree
- * @param lon         : on output longitude in degree
- * @param value       : on output value of the point
+ * @param lat         : output latitude in degrees
+ * @param lon         : output longitude in degrees
+ * @param value       : output value of the point
  * @return            positive value if successful, 0 if no more data are available
  */
 int codes_grib_iterator_next(codes_iterator* i, double* lat, double* lon, double* value);
@@ -617,9 +617,9 @@ int codes_grib_iterator_next(codes_iterator* i, double* lat, double* lon, double
  * Get the previous value from a geoiterator.
  *
  * @param i           : the geoiterator
- * @param lat         : on output latitude in degree
- * @param lon         : on output longitude in degree
- * @param value       : on output value of the point*
+ * @param lat         : output latitude in degrees
+ * @param lon         : output longitude in degrees
+ * @param value       : output value of the point*
  * @return            positive value if successful, 0 if no more data are available
  */
 int codes_grib_iterator_previous(codes_iterator* i, double* lat, double* lon, double* value);
@@ -628,7 +628,7 @@ int codes_grib_iterator_previous(codes_iterator* i, double* lat, double* lon, do
  * Test procedure for values in a geoiterator.
  *
  * @param i           : the geoiterator
- * @return            boolean, 1 if the iterator still nave next values, 0 otherwise
+ * @return            boolean, 1 if the iterator still has next values, 0 otherwise
  */
 int codes_grib_iterator_has_next(codes_iterator* i);
 
@@ -685,7 +685,7 @@ int codes_grib_nearest_find(codes_nearest* nearest, const codes_handle* h, doubl
 /**
  *  Frees a nearest object from memory
  *
- * @param nearest           : the nearest
+ * @param nearest           : the nearest neighbour object
  * @return            0 if OK, integer value on error
  */
 int codes_grib_nearest_delete(codes_nearest* nearest);
diff --git a/src/grib_api.h b/src/grib_api.h
index 0dc7be127..6b0f82b4e 100644
--- a/src/grib_api.h
+++ b/src/grib_api.h
@@ -599,7 +599,7 @@ grib_iterator* grib_iterator_new(const grib_handle* h, unsigned long flags, int*
 
 /**
  * Get latitude/longitude and data values.
- * The Latitudes, longitudes and values arrays must be properly allocated by the caller.
+ * The latitudes, longitudes and values arrays must be properly allocated by the caller.
  * Their required dimension can be obtained by getting the value of the integer key "numberOfPoints".
  *
  * @param h           : handle from which geography and data values are taken
@@ -636,7 +636,7 @@ int grib_iterator_previous(grib_iterator* i, double* lat, double* lon, double* v
  * Test procedure for values in a geoiterator.
  *
  * @param i           : the geoiterator
- * @return            boolean, 1 if the geoiterator still nave next values, 0 otherwise
+ * @return            boolean, 1 if the geoiterator still has next values, 0 otherwise
  */
 int grib_iterator_has_next(grib_iterator* i);