diff --git a/svgpathtools/paths2svg.py b/svgpathtools/paths2svg.py
index 4854d4e..7f61957 100644
--- a/svgpathtools/paths2svg.py
+++ b/svgpathtools/paths2svg.py
@@ -278,7 +278,9 @@ def disvg(paths=None, colors=None,
 
     # Create an SVG file
     if svg_attributes:
-        dwg = Drawing(filename=filename, **svg_attributes)
+        szx = svg_attributes.get("height", "100%")
+        szy = svg_attributes.get("width", "100%")
+        dwg = Drawing(filename=filename, size=(szx, szy), **svg_attributes)
     else:
         dwg = Drawing(filename=filename, size=(szx, szy), viewBox=viewbox)