diff --git a/src/qibolab/instruments/zhinst.py b/src/qibolab/instruments/zhinst.py
index 228e254c50..fdd201624a 100644
--- a/src/qibolab/instruments/zhinst.py
+++ b/src/qibolab/instruments/zhinst.py
@@ -1150,8 +1150,8 @@ def fast_reset(self, exp, qubits, fast_reset):
 
     @staticmethod
     def rearrange_sweepers(sweepers: List[Sweeper]) -> Tuple[np.ndarray, List[Sweeper]]:
-        """
-        Rearranges sweepers from qibocal based on device hardware limitations.
+        """Rearranges sweepers from qibocal based on device hardware
+        limitations.
 
         Frequency sweepers must be applied before bias or amplitude sweepers.