diff --git a/resources/function_help/json/geometry_overlay_nearest b/resources/function_help/json/geometry_overlay_nearest
index a941b86591a..aecd96715d0 100644
--- a/resources/function_help/json/geometry_overlay_nearest
+++ b/resources/function_help/json/geometry_overlay_nearest
@@ -1,7 +1,7 @@
 {
   "name": "geometry_overlay_nearest",
   "type": "function",
-  "description": "TODO",
+  "description": "This returns an array of results of an expression evaluated on features from an other layer ordered BY DISTANCE to the current feature, or, if no expression if provided, simply returns whether at least one feature from the other layer was found. Note : this function can be slow and consume a lot of memory for large layers.",
   "arguments": [
     {
       "arg": "layer",