qiskit-community · manoelmarques · Nov 5, 2020 · Nov 4, 2020 · Nov 4, 2020 · Nov 4, 2020
diff --git a/qiskit/aqua/quantum_instance.py b/qiskit/aqua/quantum_instance.py
@@ -146,7 +146,7 @@ def __init__(self,
                                 'but you specified {}'.format(max_shots, shots))
 
         run_config = RunConfig(shots=shots, max_credits=max_credits)
-        if seed_simulator:
+        if seed_simulator is not None:
             run_config.seed_simulator = seed_simulator
 
         self._run_config = run_config

diff --git a/releasenotes/notes/qi-seed-simulator-757f88ec183082f7.yaml b/releasenotes/notes/qi-seed-simulator-757f88ec183082f7.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Previously, setting `seed_simulator=0` in the `QuantumInstance` did not set 
+    any seed. This was only affecting the value 0. This has been fixed.