diff --git a/src/ansys/pyensight/core/launcher.py b/src/ansys/pyensight/core/launcher.py
index 9e1d635e51..733d28c39c 100644
--- a/src/ansys/pyensight/core/launcher.py
+++ b/src/ansys/pyensight/core/launcher.py
@@ -180,7 +180,7 @@ def _find_ports_used_by_other_pyensight_and_ensight(self):
         for process in psutil.process_iter():
             try:
                 process_cmdline = process.cmdline()
-            except (psutil.AccessDenied, psutil.ZombieProcess):
+            except (psutil.AccessDenied, psutil.ZombieProcess, OSError):
                 continue
             if not process_cmdline:
                 continue