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-rw-r--r--python/qemu/qmp.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/python/qemu/qmp.py b/python/qemu/qmp.py
index 4b9a362240..f40586eedd 100644
--- a/python/qemu/qmp.py
+++ b/python/qemu/qmp.py
@@ -80,7 +80,7 @@ class QEMUMonitorProtocol:
             raise QMPConnectError
         # Greeting seems ok, negotiate capabilities
         resp = self.cmd('qmp_capabilities')
-        if "return" in resp:
+        if resp and "return" in resp:
             return greeting
         raise QMPCapabilitiesError