diff --git a/src/xpra/client/mixins/display.py b/src/xpra/client/mixins/display.py
index 8100ad4aac..7159ccb678 100644
--- a/src/xpra/client/mixins/display.py
+++ b/src/xpra/client/mixins/display.py
@@ -147,7 +147,7 @@ def get_dpi_caps(self):
         dpi = 0
         if self.dpi>0:
             #scale it:
-            dpi = self.cx(self.cy(self.dpi))
+            dpi = self.cx(self.cy(self.dpi*2))
         else:
             #not supplied, use platform detection code:
             #platforms may also provide per-axis dpi (later win32 versions do)