diff --git a/lib/cuckoo/common/abstracts.py b/lib/cuckoo/common/abstracts.py
index ccbf44cb4..795c5739e 100644
--- a/lib/cuckoo/common/abstracts.py
+++ b/lib/cuckoo/common/abstracts.py
@@ -115,7 +115,7 @@ def _initialize(self, module_name):
 
                 # If configured, use specific network interface for this
                 # machine, else use the default value.
-                 if machine_opts.get("interface"):
+                if machine_opts.get("interface"):
                     machine.interface = machine_opts["interface"]
                 else:
                     machine.interface = mmanager_opts.get("interface")