diff --git a/src/qibo/quantum_info/clifford.py b/src/qibo/quantum_info/clifford.py
index 1acce5bcdb..11d1b4e9ec 100644
--- a/src/qibo/quantum_info/clifford.py
+++ b/src/qibo/quantum_info/clifford.py
@@ -273,8 +273,8 @@ def samples(self, binary: bool = True, registers: bool = False):
 
         if registers:
             return {
-                register: gate.result.samples(binary)
-                for register, gate in self._measurement_registers
+                gate.register_name: gate.result.samples(binary)
+                for gate in self.measurements
             }
 
         if binary: