diff --git a/adapters/opencv/kleidicv_hal.cpp b/adapters/opencv/kleidicv_hal.cpp
index 6b32e31085b9077b23bcccafe6fe1fdbc9df0d4f..113beb6c12bccb4c1bd52f4b03a5efabc848cd64 100644
--- a/adapters/opencv/kleidicv_hal.cpp
+++ b/adapters/opencv/kleidicv_hal.cpp
@@ -1031,8 +1031,8 @@ int transpose(const uchar *src_data, size_t src_step, uchar *dst_data,
       static_cast<size_t>(element_size)));
 }
 
-int sum(const uchar *src_data, size_t src_step, int src_type, size_t width,
-        size_t height, double *result) {
+int sum(const uchar *src_data, size_t src_step, int src_type, int width,
+        int height, double *result) {
   size_t channels = (src_type >> CV_CN_SHIFT) + 1;
 
   if (channels != 1) {
@@ -1044,7 +1044,8 @@ int sum(const uchar *src_data, size_t src_step, int src_type, size_t width,
       float result_float = 0;
       kleidicv_error_t err =
           kleidicv_sum_f32(reinterpret_cast<const float *>(src_data), src_step,
-                           width, height, &result_float);
+                           static_cast<size_t>(width),
+                           static_cast<size_t>(height), &result_float);
       *result = result_float;
       return convert_error(err);
   }
diff --git a/adapters/opencv/kleidicv_hal.h b/adapters/opencv/kleidicv_hal.h
index 9245de5c6a1a73abac703e7aec7cb3011f5a407b..0c9cd5e6bab0587d616192cd22c9280df1d726ed 100644
--- a/adapters/opencv/kleidicv_hal.h
+++ b/adapters/opencv/kleidicv_hal.h
@@ -126,8 +126,8 @@ int pyrdown(const uchar *src_data, size_t src_step, int src_width,
 int transpose(const uchar *src_data, size_t src_step, uchar *dst_data,
               size_t dst_step, int src_width, int src_height, int element_size);
 
-int sum(const uchar *src_data, size_t src_step, int src_type, size_t width,
-        size_t height, double *result);
+int sum(const uchar *src_data, size_t src_step, int src_type, int width,
+        int height, double *result);
 
 int rotate(int src_type, const uchar *src_data, size_t src_step, int src_width,
            int src_height, uchar *dst_data, size_t dst_step, int angle);
diff --git a/adapters/opencv/opencv-4.11.patch b/adapters/opencv/opencv-4.11.patch
index 2ea21add4090d199e90869c4b5cd908573391066..4eee55ffbba7ac6e612700558b49ada36b424139 100644
--- a/adapters/opencv/opencv-4.11.patch
+++ b/adapters/opencv/opencv-4.11.patch
@@ -33,7 +33,7 @@ index 2b4035285f..402f2d451a 100644
      double scale[] = {alpha, beta};
      CV_Assert( func != 0 );
 diff --git a/modules/core/src/hal_replacement.hpp b/modules/core/src/hal_replacement.hpp
-index 474fe17393..9a43264a4b 100644
+index 474fe17393..985325375c 100644
 --- a/modules/core/src/hal_replacement.hpp
 +++ b/modules/core/src/hal_replacement.hpp
 @@ -307,9 +307,29 @@ Hamming distance between two vectors
@@ -66,18 +66,20 @@ index 474fe17393..9a43264a4b 100644
  //! @endcond
  
  /**
-@@ -1011,6 +1031,38 @@ inline int hal_ni_transpose2d(const uchar* src_data, size_t src_step, uchar* dst
+@@ -1011,6 +1031,40 @@ inline int hal_ni_transpose2d(const uchar* src_data, size_t src_step, uchar* dst
  #define cv_hal_transpose2d hal_ni_transpose2d
  //! @endcond
  
 +/**
-+   @brief sum
-+   @param src_data,src_step,src_type Source image
-+   @param width,height Source image dimensions
-+   @param result Pointer to save the sum result to.
-+*/
-+inline int hal_ni_sum(const uchar *src_data, size_t src_step, int src_type, size_t width, size_t height, double *result) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
-+
++    @ brief sum
++    @param src_data Source image data
++    @param src_step Source image step
++    @param src_type Source image type
++    @param width, height Source image dimensions
++    @param result Pointer to save the sum result to.
++ */
++inline int hal_ni_sum(const uchar *src_data, size_t src_step, int src_type, int width, int height, double *result)
++{ return CV_HAL_ERROR_NOT_IMPLEMENTED; }
 +//! @cond IGNORED
 +#define cv_hal_sum hal_ni_sum
 +//! @endcond