diff --git a/StatusData.h b/StatusData.h
index 086e398..1819f0e 100644
--- a/StatusData.h
+++ b/StatusData.h
@@ -223,7 +223,7 @@ typedef struct __attribute__ ((packed)) {
 //[0x84..0xFF] No signal (Not supported)
 
 typedef struct __attribute__ ((packed)) {
-    uint16_t Active_Diagnostic_Session;
+    uint8_t Active_Diagnostic_Session;
 } tStatus_Active_Diagnostic_Session;
 #pragma scalar_storage_order little-endian