diff --git a/test/unittest/rtg/rtg_test.cpp b/test/unittest/rtg/rtg_test.cpp
index d8035fbd5882c284a31a1f9281c1e7d83fcfcc01..cb5390f74e49a8e845ae23f9fa4d68516c0a09b8 100644
--- a/test/unittest/rtg/rtg_test.cpp
+++ b/test/unittest/rtg/rtg_test.cpp
@@ -175,7 +175,7 @@ static int CreateNewRtgGrp(int prioType, int rtNum)
     return ret;
 }
 
-static int DestroyRtgGrp(int GrpId)
+static int DestroyRtgGrp(int grpId)
 {
     struct RtgGrpData grpData;
     int ret;
@@ -185,7 +185,7 @@ static int DestroyRtgGrp(int GrpId)
     }
     (void)memset_s(&grpData, sizeof(struct RtgGrpData), 0, sizeof(struct RtgGrpData));
     grpData.rtgCmd = CMD_DESTROY_RTG_GRP;
-    grpData.grpId = GrpId;
+    grpData.grpId = grpId;
     ret = ioctl(fd, CMD_ID_SET_RTG, &grpData);
 
     close(fd);