diff --git a/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c b/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
index 3a47368ad..b69776c6f 100755
--- a/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
+++ b/code/application/source/cardv/SrcCode/System/SysUsb_Exe.c
@@ -151,6 +151,7 @@ static BOOL System_InsmodUsb(BOOL isHost)
 
 	if(isHost == FALSE){
 #if HUNTING_CAMERA_MCU == ENABLE
+        sf_set_msdc_clk();
         sf_usb_mux_s(0);
         vos_util_delay_ms(200);
 #endif