diff --git a/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/lynq-qser-sim-demo/files/lynq-qser-sim-demo.h b/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/lynq-qser-sim-demo/files/lynq-qser-sim-demo.h
index cdd905d..c878b20 100755
--- a/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/lynq-qser-sim-demo/files/lynq-qser-sim-demo.h
+++ b/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/lynq-qser-sim-demo/files/lynq-qser-sim-demo.h
@@ -28,7 +28,7 @@
     QSER_SIM_APP_TYPE_T         e_app;      /**< Indicates the type of the application. */
 }QSER_SIM_APP_ID_INFO_T;  /* Type */
 
-#define QSER_SIM_PIN_LEN_MAX  8   /**  Maximum length of PIN data. */
+#define QSER_SIM_PIN_LEN_MAX  8+1   /**  Maximum length of PIN data. */
 
 typedef enum 
 {
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-qser-sim/include/lynq_qser_sim.h b/cap/zx297520v3/src/lynq/lib/liblynq-qser-sim/include/lynq_qser_sim.h
index f4d3233..801c56d 100755
--- a/cap/zx297520v3/src/lynq/lib/liblynq-qser-sim/include/lynq_qser_sim.h
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-qser-sim/include/lynq_qser_sim.h
@@ -36,7 +36,7 @@
     QSER_SIM_APP_TYPE_T         e_app;      /**< Indicates the type of the application. */
 }QSER_SIM_APP_ID_INFO_T;  /* Type */
 
-#define QSER_SIM_PIN_LEN_MAX  8   /**  Maximum length of PIN data. */
+#define QSER_SIM_PIN_LEN_MAX  8+1   /**  Maximum length of PIN data. */
 
 typedef enum 
 {