diff --git a/KOS-Scansat/Addon.cs b/KOS-Scansat/Addon.cs
index 1812e91..c645d84 100644
--- a/KOS-Scansat/Addon.cs
+++ b/KOS-Scansat/Addon.cs
@@ -35,7 +35,7 @@ private void InitializeSuffixes()
 			AddSuffix("COMPLETEDSCANS", new kOS.Safe.Encapsulation.Suffixes.TwoArgsSuffix<ListValue, BodyTarget, GeoCoordinates>(GetScans, "Returns the list of the completed scans of Body,GeoCoordinates"));
 			AddSuffix("ALLSCANTYPES", new kOS.Safe.Encapsulation.Suffixes.NoArgsSuffix<ListValue>(GetScanNames, "Names of all scan types"));
 			AddSuffix("ALLRESOURCES", new kOS.Safe.Encapsulation.Suffixes.NoArgsSuffix<ListValue>(GetResourceNames, "List of all activated resource in the current game"));
-			AddSuffix("RESOURCEAT", new kOS.Safe.Encapsulation.Suffixes.VarArgsSuffix<ScalarDoubleValue, Structure>(GetResourceByName, "Returns the amount of a resource by its scan type: Body,GeoCoordinates,scantype"));
+			AddSuffix("RESOURCEAT", new kOS.Safe.Encapsulation.Suffixes.VarArgsSuffix<ScalarDoubleValue, Structure>(GetResourceByName, "Returns the amount of a resource by its scan type: Body,GeoCoordinates,resourcename"));
 			AddSuffix("SLOPE", new kOS.Safe.Encapsulation.Suffixes.TwoArgsSuffix<ScalarDoubleValue, BodyTarget, GeoCoordinates>(GetSlope, "Returns the most accurate slope of the location"));
 			AddSuffix("GETCOVERAGE", new kOS.Safe.Encapsulation.Suffixes.TwoArgsSuffix<ScalarDoubleValue, BodyTarget, StringValue>(GetCoverage, "Returns completen percatage of a body,scantype"));
 			AddSuffix("GETANOMALIES", new kOS.Safe.Encapsulation.Suffixes.OneArgsSuffix<ListValue, BodyTarget>(GetAnomalies, "Returns a list of waypoints to anomalies on the given body"));
diff --git a/README.md b/README.md
index a1ae403..6c0aeee 100644
--- a/README.md
+++ b/README.md
@@ -56,9 +56,9 @@ Returns the completed percentage of the scantype of the body.
 
 Returns a list of the valid resources, which are known to scansat and activated by other mods
 
-**:RESOURCEAT (\<body\>,\<geoposition\>,\<scantype\>)**
+**:RESOURCEAT (\<body\>,\<geoposition\>,\<resourcename\>)**
 
-Returns the value (as a double) of and given resource at the spot.
+Returns the value (as a double) of and given resource at the spot.  Returns -1 if the resource amount is not known.
 
 **:GETANOMALIES (\<body\>)**