diff --git a/csse_covid_19_data/README.md b/csse_covid_19_data/README.md
index 29ed24feb5e..05a26d1ba06 100644
--- a/csse_covid_19_data/README.md
+++ b/csse_covid_19_data/README.md
@@ -24,7 +24,7 @@ MM-DD-YYYY.csv in UTC.
 * <b>Admin2</b>: County name. US only.
 * <b>Province_State</b>: Province, state or dependency name.
 * <b>Country_Region</b>: Country, region or sovereignty name. The names of locations included on the Website correspond with the official designations used by the U.S. Department of State.
-* <b>Last Update</b>: MM/DD/YYYY HH:mm:ss  (24 hour format, in UTC).
+* <b>Last_Update</b>: MM/DD/YYYY HH:mm:ss  (24 hour format, in UTC).
 * <b>Lat</b> and <b>Long_</b>: Dot locations on the dashboard. All points (except for Australia) shown on the map are based on geographic centroids, and are not representative of a specific address, building or any location at a spatial scale finer than a province/state. Australian dots are located at the centroid of the largest city in each state.
 * <b>Confirmed</b>: Counts include confirmed and probable (where reported).
 * <b>Deaths</b>: Counts include confirmed and probable (where reported).