diff --git a/dap-sdk/core/include/dap_math_ops.h b/dap-sdk/core/include/dap_math_ops.h
index 89fd22b46d2b1265cbc8d865b803d7c17a3ae1e6..20f4250f0cd50b2c9ae824e7155fbfa02cb826a3 100755
--- a/dap-sdk/core/include/dap_math_ops.h
+++ b/dap-sdk/core/include/dap_math_ops.h
@@ -1,7 +1,8 @@
 #pragma once
 #include <stdint.h>
 #include "dap_common.h"
-#include <stdint.h>
+#include <stdio.h>
+
 
 
 typedef struct unsign128_t {