diff --git a/Makefile b/Makefile
index 0cf341ef..d3f4e5ef 100644
--- a/Makefile
+++ b/Makefile
@@ -26,6 +26,7 @@ build/$(PACKAGE):
 	   --js browsersupport.js \
 	   --js svgtransformlist.js \
 	   --js math.js \
+	   --js units.js \
 	   --js svgutils.js \
 	   --js svgcanvas.js \
 	   --js svg-editor.js \
diff --git a/test/test1.html b/test/test1.html
index d8d289ae..d95c26b5 100644
--- a/test/test1.html
+++ b/test/test1.html
@@ -8,6 +8,7 @@
   <script type="text/javascript" src="../editor/browsersupport.js"></script>
   <script type="text/javascript" src="../editor/svgtransformlist.js"></script>
   <script type="text/javascript" src="../editor/math.js"></script>
+  <script type="text/javascript" src="../editor/units.js"></script>
   <script type="text/javascript" src="../editor/svgutils.js"></script>
   <script type="text/javascript" src="../editor/svgcanvas.js"></script>
   <script type="text/javascript" src="qunit/qunit.js"></script>