diff --git a/gramps/gen/plug/_pluginreg.py b/gramps/gen/plug/_pluginreg.py
index 2017e55c2c2..c2845ecb757 100644
--- a/gramps/gen/plug/_pluginreg.py
+++ b/gramps/gen/plug/_pluginreg.py
@@ -1431,7 +1431,7 @@ def scan_dir(self, dir, filenames, uistate=None):
                 if not self.__req.check_plugin(plugin):
                     rmlist.append(ind)
                     continue
-                if not plugin.status == STABLE and self.stable_only:
+                if plugin.status == UNSTABLE and self.stable_only:
                     rmlist.append(ind)
                     continue
                 if (