diff --git a/apps/aqhome-react/types/unit.c b/apps/aqhome-react/types/unit.c
index 0deee87..cf64dff 100644
--- a/apps/aqhome-react/types/unit.c
+++ b/apps/aqhome-react/types/unit.c
@@ -490,7 +490,7 @@ void AQHREACT_Unit_OutputData(AQHREACT_UNIT *unit, AQHREACT_PORT *port, const AQ
 
 void AQHREACT_Unit_OutputDoubleData(AQHREACT_UNIT *unit, AQHREACT_PORT *port, double data)
 {
-  if (unit && unit->outputPortList) {
+  if (unit && port && unit->outputPortList) {
     AQHREACT_DATAOBJECT *dataObject;
 
     dataObject=AQHREACT_DataObject_new();
@@ -505,7 +505,7 @@ void AQHREACT_Unit_OutputDoubleData(AQHREACT_UNIT *unit, AQHREACT_PORT *port, do
 
 void AQHREACT_Unit_OutputStringData(AQHREACT_UNIT *unit, AQHREACT_PORT *port, const char *data)
 {
-  if (unit && unit->outputPortList) {
+  if (unit && port && unit->outputPortList) {
     AQHREACT_DATAOBJECT *dataObject;
 
     dataObject=AQHREACT_DataObject_new();