diff --git a/GNUmakefile b/GNUmakefile
index 01806b53e61..c1be177ddc0 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -236,8 +236,12 @@ help: .FORCE
 	@echo "  * check_descriptions   - check for duplicate/invalid descriptions"
 	@echo ""
 	@echo "Utilities (not associated with building blender)"
-	@echo "  * icons      - updates PNG icons from SVG files."
-	@echo "  * icons_geom - updates Geometry icons from BLEND file."
+	@echo "  * icons    - Updates PNG icons from SVG files."
+	@echo "               Set environment variables 'BLENDER_BIN' and 'INKSCAPE_BIN'"
+	@echo "               to define your own commands."
+	@echo "  * icons_geom - Updates Geometry icons from BLEND file."
+	@echo "                 Set environment variable 'BLENDER_BIN'"
+	@echo "                 to define your own command."
 	@echo "  * tgz        - create a compressed archive of the source code."
 	@echo "  * update     - updates git and all submodules"
 	@echo ""