diff --git a/doc/changelog.d/3263.fixed.md b/doc/changelog.d/3263.fixed.md
new file mode 100644
index 0000000000..d365b7f408
--- /dev/null
+++ b/doc/changelog.d/3263.fixed.md
@@ -0,0 +1 @@
+fix: not showing instances on linux
\ No newline at end of file
diff --git a/src/ansys/mapdl/core/cli/list_instances.py b/src/ansys/mapdl/core/cli/list_instances.py
index 6604cc2563..11a3dba169 100644
--- a/src/ansys/mapdl/core/cli/list_instances.py
+++ b/src/ansys/mapdl/core/cli/list_instances.py
@@ -73,7 +73,11 @@ def list_instances(instances, long, cmd, location):
     mapdl_instances = []
 
     def is_valid_process(proc):
-        valid_status = proc.status() in [psutil.STATUS_RUNNING, psutil.STATUS_IDLE]
+        valid_status = proc.status() in [
+            psutil.STATUS_RUNNING,
+            psutil.STATUS_IDLE,
+            psutil.STATUS_SLEEPING,
+        ]
         valid_ansys_process = ("ansys" in proc.name().lower()) or (
             "mapdl" in proc.name().lower()
         )