--- a/BeremizIDE.py	Mon Aug 14 21:31:01 2017 +0300
+++ b/BeremizIDE.py	Mon Aug 14 22:23:17 2017 +0300
@@ -479,7 +479,7 @@
             self.runtime_port = int(random.random() * 1000) + 61131
             # launch local runtime
             self.local_runtime = ProcessLogger(self.Log,
-                "\"%s\" \"%s\" -p %s -i localhost %s %s"%(
+                "\"%s\" \"%s\" -p %s -i localhost %s %s" % (
                     sys.executable,
                     Bpath("Beremiz_service.py"),
                     self.runtime_port,