diff --git a/src/Grafoscopio-Utils/GrafoscopioUtils.class.st b/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
index af4975f..718d54e 100644
--- a/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
+++ b/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
@@ -11,8 +11,8 @@ Class {
 { #category : #'graphical interface' }
 GrafoscopioUtils class >> downloadingFrom: downloadUrl withMessage: aString into: location [
 	| fileName |
-	fileName := (downloadUrl splitOn: $/) last.
-	(location / fileName) exists ifTrue: [ (location / fileName) ensureDelete ].
+	fileName := downloadUrl segments last.
+	(location / fileName) ensureDelete.
 	[: bar |
 		bar title: aString.
 		[ZnClient new
@@ -27,3 +27,26 @@ GrafoscopioUtils class >> downloadingFrom: downloadUrl withMessage: aString into
 				progress resume ].
 	] asJob run.
 ]
+
+{ #category : #private }
+GrafoscopioUtils class >> sanitize: url [
+	"I remove white spaces in url's and prepend 'http://' to urls when it is ommited, so
+	operations that rely on sane and well formed urls don't throw error messages."
+	| sanitized modUrl |
+	modUrl := url.
+	[modUrl endsWith: ' ']
+		whileTrue: [ modUrl := modUrl copyFrom: 1 to: (modUrl size - 1)  ].
+	(url beginsWith: 'http://') 
+		ifFalse: [ sanitized := ('http://', modUrl) asUrl ]
+		ifTrue: [ sanitized := modUrl asUrl ].
+	^ sanitized
+]
+
+{ #category : #updating }
+GrafoscopioUtils class >> update [
+	"Updates GrafoscopioUtils with new versions of itself take from the source code repository."
+	Gofer new 
+		smalltalkhubUser: 'Offray' project: 'Grafoscopio';
+   		package: 'GrafoscopioUtils';
+    	load.
+]