diff --git a/nw/gui/theme.py b/nw/gui/theme.py
index 8aa0c1fe..1b3c1263 100644
--- a/nw/gui/theme.py
+++ b/nw/gui/theme.py
@@ -208,9 +208,12 @@ class GuiTheme:
         theFont = QFont()
         if self.mainConf.guiFont not in self.guiFontDB.families():
             if self.mainConf.osWindows:
-                # On Windows, default to Cantarell provided by novelWriter
-                theFont.setFamily("Cantarell")
-                theFont.setPointSize(11)
+                if "Arial" in self.guiFontDB.families():
+                    theFont.setFamily("Arial")
+                else:
+                    # On Windows, fall back to Cantarell provided by novelWriter
+                    theFont.setFamily("Cantarell")
+                theFont.setPointSize(10)
             else:
                 theFont = self.guiFontDB.systemFont(QFontDatabase.GeneralFont)
             self.mainConf.guiFont = theFont.family()