--- a/eric6/Plugins/VcsPlugins/vcsPySvn/subversion.py	Sat Nov 21 19:31:16 2020 +0100
+++ b/eric6/Plugins/VcsPlugins/vcsPySvn/subversion.py	Sun Nov 22 16:04:59 2020 +0100
@@ -2199,7 +2199,7 @@
                 with open(name, "r", encoding="utf-8") as f1:
                     output2 = f1.read()
                 name2 = name
-            except IOError:
+            except OSError:
                 E5MessageBox.critical(
                     self.__ui,
                     self.tr("Subversion Side-by-Side Difference"),