diff --git a/scour.py b/scour.py
index d86ee77..fd63de6 100755
--- a/scour.py
+++ b/scour.py
@@ -455,8 +455,9 @@ def repairStyle(node):
 				for uselessStyle in ['fill', 'fill-opacity', 'fill-rule', 'stroke', 'stroke-linejoin',
 					'stroke-opacity', 'stroke-miterlimit', 'stroke-linecap', 'stroke-dasharray',
 					'stroke-dashoffset', 'stroke-opacity'] :
-					del styleMap[uselessStyle]
-					num += 1
+					if styleMap.has_key(uselessStyle):
+						del styleMap[uselessStyle]
+						num += 1
 
 		#  if stroke:none, then remove all stroke-related properties (stroke-width, etc)
 		#  TODO: should also detect if the computed value of this element is fill="none"
@@ -490,8 +491,9 @@ def repairStyle(node):
 				num += 1
 			elif fillOpacity == 0.0 :
 				for uselessFillStyle in [ 'fill', 'fill-rule' ] :
-					del styleMap[uselessFillStyle]
-					num += 1
+					if styleMap.has_key(uselessFillStyle):
+						del styleMap[uselessFillStyle]
+						num += 1
 		
 		#  stroke-opacity: 1 or 0
 		if styleMap.has_key('stroke-opacity') :
diff --git a/testscour.py b/testscour.py
index 6d36b44..bcb8e95 100755
--- a/testscour.py
+++ b/testscour.py
@@ -256,6 +256,21 @@ class RemoveStrokeLinejoinWhenStrokeTransparent(unittest.TestCase):
 		self.assertEquals(doc.getElementsByTagNameNS(SVGNS, 'path')[0].getAttribute('stroke-linejoin'), '',
 			"stroke-linejoin attribute not emptied" )
 
+class RemoveStrokeDasharrayWhenStrokeTransparent(unittest.TestCase):
+	def runTest(self):
+		doc = scour.scourXmlFile('unittests/stroke-linejoin.svg')
+		self.assertEquals(doc.getElementsByTagNameNS(SVGNS, 'path')[0].getAttribute('stroke-dasharray'), '',
+			"stroke-dasharray attribute not emptied" )
+
+class RemoveStrokeDashoffsetWhenStrokeTransparent(unittest.TestCase):
+	def runTest(self):
+		doc = scour.scourXmlFile('unittests/stroke-linejoin.svg')
+		self.assertEquals(doc.getElementsByTagNameNS(SVGNS, 'path')[0].getAttribute('stroke-dashoffset'), '',
+			"stroke-dashoffset attribute not emptied" )
+
+# TODO : add in duplicate tests for when the stroke-width is 0
+# TODO : add in duplicate tests for when the stroke is none
+
 #class RemoveUnreferencedFonts(unittest.TestCase):
 #	def runTest(self):
 #		doc = scour.scourXmlFile('unittests/unreferenced-font.svg')
diff --git a/unittests/stroke-linejoin.svg b/unittests/stroke-linejoin.svg
index 23fd86e..f462db9 100644
--- a/unittests/stroke-linejoin.svg
+++ b/unittests/stroke-linejoin.svg
@@ -1,3 +1,3 @@
 <svg xmlns="http://www.w3.org/2000/svg">
-    <path id="p" fill="black" style="stroke: rgb(0, 0, 0); stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 0;" d="M 7.7592046,36.982095 C 7.8831049,40.873696 7.8339808,45.305308 7.8339808,49.436888  Z" />
+    <path id="p" fill="black" style="stroke: rgb(0, 0, 0); stroke-width: 1px; stroke-linecap: butt; stroke-dasharray: none; stroke-dashoffset: 2; stroke-linejoin: miter; stroke-opacity: 0;" d="M 7.7592046,36.982095 C 7.8831049,40.873696 7.8339808,45.305308 7.8339808,49.436888  Z" />
 </svg>
\ No newline at end of file