diff --git a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
index baca82b0b1fe9ef4714c57203c8e1aeb0e53ee21..2bcf8d244d4278a12f23e1ccdc27432c85c5debd 100644
--- a/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
+++ b/interfaces/innerkits/datatransmitmgr/include/dev_slinfo_adpt.h
@@ -40,7 +40,7 @@ typedef int32_t (*RequestDeviceSecurityInfoAsyncFunction)(const DeviceIdentify *
 
 typedef void (*FreeDeviceSecurityInfoFunction)(DeviceSecurityInfo *info);
 
-typedef uint32_t (*GetDeviceSecurityLevelValueFunction)(const DeviceSecurityInfo *info, int32_t *level);
+typedef int32_t (*GetDeviceSecurityLevelValueFunction)(const DeviceSecurityInfo *info, int32_t *level);
 
 typedef struct {
     RequestDeviceSecurityInfoFunction requestDeviceSecurityInfo;