diff --git a/src/glicid_spawner/slurm.py b/src/glicid_spawner/slurm.py
index 22b5739..59e64af 100644
--- a/src/glicid_spawner/slurm.py
+++ b/src/glicid_spawner/slurm.py
@@ -140,9 +140,9 @@ def sinfo_run(username: str = None) -> str:
     cmd = f'sinfo {flags} --Format={fmt}'
 
     if username:
-        cmd = f'su - {username} -c "{cmd}"'
+        cmd = f"su - {username} -c '{cmd}'"
 
-    return subprocess.check_output(shlex.split(cmd, posix=False)).decode('utf-8')
+    return subprocess.check_output(shlex.split(cmd)).decode('utf-8')
 
 
 def sinfo_reader(result: str) -> list:
diff --git a/tests/test_slurm.py b/tests/test_slurm.py
index ff57c33..bcb9429 100644
--- a/tests/test_slurm.py
+++ b/tests/test_slurm.py
@@ -109,13 +109,12 @@ def test_slurm_sinfo_run(monkeypatch):
     )
 
     assert sinfo_run(username='john-doe') == (
-        'su - john-doe -c "'
+        'su - john-doe -c '
         'sinfo '
         '--federation '
         '--noheader '
         '--responding '
         '--Format=Cluster,PartitionName,NodeHost,StateLong,CPUsState,Memory,Gres'
-        '"'
     )