--- a/py_ext/plc_python.c	Mon May 26 14:44:03 2014 +0100
+++ b/py_ext/plc_python.c	Fri Jun 06 18:30:49 2014 +0100
@@ -119,7 +119,7 @@
 			/*printf("__PythonEvalFB pop %%d - %%*s\n",Current_PLC_EvalFB, data__->BUFFER.len, data__->BUFFER.body);*/
 		}else if(poll){
 			/* when in polling, no answer == ack down */
-		    __SET_VAR(data__->, ACK., 0);
+		    __SET_VAR(data__->, ACK,, 0);
 		}
 		/* got the order to act ?*/
 		if(__GET_VAR(data__->TRIGGED) == 1 &&