diff --git a/readme.txt b/readme.txt
index 18cc89e..7fddea3 100644
--- a/readme.txt
+++ b/readme.txt
@@ -86,6 +86,7 @@ Changes
 * Fixed bug in rendering of Pie Chart styles.
 * Improved testing framework. Now samples are at least generated as part
   of the test suite.
+* Fixed bug in javascript when label ids had spaces. See #3139197.
 
 2.0.6
 ~~~~~
diff --git a/svg/charts/graph.py b/svg/charts/graph.py
index 79eca8e..ef29b0a 100644
--- a/svg/charts/graph.py
+++ b/svg/charts/graph.py
@@ -239,7 +239,7 @@ class Graph(object):
 			})
 
 		# add the circle element to the foreground
-		visibility = "document.getElementById(%s).setAttribute('visibility', %%s)" % id
+		visibility = "document.getElementById('%s').setAttribute('visibility', %%s)" % id
 		t = etree.SubElement(self.foreground, 'circle', {
 			'cx': str(x),
 			'cy': str(y),