diff --git a/src/main/java/eu/simstadt/regionchooser/RegionChooserCLI.java b/src/main/java/eu/simstadt/regionchooser/RegionChooserCLI.java
index 128b8eba3dc4eafaebca0b77cfc7d2914f6cd99d..11e1232a712b9648b791bd26562fa45cae7d0d1f 100644
--- a/src/main/java/eu/simstadt/regionchooser/RegionChooserCLI.java
+++ b/src/main/java/eu/simstadt/regionchooser/RegionChooserCLI.java
@@ -97,6 +97,7 @@ public Integer call() throws Exception {
 
 		if (!localCoordinates) {
 			// WKT coordinates are in WGS84, so should be first converted to srsName
+			// NOTE: It doesn't work with MULTIPOLYGON, only POLYGON
 			wktPolygon = RegionChooserUtils.wktPolygonToLocalCRS(wktPolygon, localCRS);
 		}