diff --git a/hal/ndsrvp/src/bilateralFilter.cpp b/hal/ndsrvp/src/bilateralFilter.cpp
index 5bf94818cc..53d338e2de 100644
--- a/hal/ndsrvp/src/bilateralFilter.cpp
+++ b/hal/ndsrvp/src/bilateralFilter.cpp
@@ -189,7 +189,7 @@ int bilateralFilter(const uchar* src_data, size_t src_step,
 
     // calculate source border
     std::vector<uchar> padding;
-    padding.resize(cal_width * cal_height * cn);
+    padding.resize((size_t)cal_width * cal_height * cn);
     uchar* pad_data = &padding[0];
     int pad_step = cal_width * cn;