diff --git a/pyqtgraph/exporters/SVGExporter.py b/pyqtgraph/exporters/SVGExporter.py
index ac02990a..465c4526 100644
--- a/pyqtgraph/exporters/SVGExporter.py
+++ b/pyqtgraph/exporters/SVGExporter.py
@@ -199,7 +199,7 @@ def _generateItemSvg(item, nodes=None, root=None, options={}):
         svg = QtSvg.QSvgGenerator()
         svg.setOutputDevice(buf)
         dpi = QtGui.QGuiApplication.primaryScreen().logicalDotsPerInchX()
-        svg.setResolution(dpi)
+        svg.setResolution(int(dpi))
 
         p = QtGui.QPainter()
         p.begin(svg)