diff --git a/docs/api.rst b/docs/api.rst
index 25c09728..71124ab5 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -69,7 +69,7 @@ There is function for calculating the component sum for GHI, DHI,
 and DNI, and correcting for nighttime periods. Using this function, we can
 estimate one irradiance field using the two other irradiance fields.
 This can be useful for comparison, as well as to
-calculate missing data fields. 
+calculate missing data fields.
 
 .. autosummary::
    :toctree: generated/