diff --git a/adapters/opencv/kleidicv_hal.cpp b/adapters/opencv/kleidicv_hal.cpp
index 4a6f0c68b9d99330eb8dfce0c9928a702671bad9..14afc0e3b6b27c4891e6c847a795389a71357f3e 100644
--- a/adapters/opencv/kleidicv_hal.cpp
+++ b/adapters/opencv/kleidicv_hal.cpp
@@ -347,7 +347,11 @@ int separable_filter_2d_init(cvhalFilter2D **context, int src_type,
     return CV_HAL_ERROR_NOT_IMPLEMENTED;
   }
 
-  if (anchor_x != -1 || anchor_y != -1) {
+  if (anchor_x > -1 && anchor_x != (kernelx_length >> 1)) {
+    return CV_HAL_ERROR_NOT_IMPLEMENTED;
+  }
+
+  if (anchor_y > -1 && anchor_y != (kernely_length >> 1)) {
     return CV_HAL_ERROR_NOT_IMPLEMENTED;
   }
 
diff --git a/doc/opencv.md b/doc/opencv.md
index 57a7a5ef29ecac0c34b721ada04d32ad3e0e7498..431a8e21ad7a3d65670cae047304139c28807d89 100644
--- a/doc/opencv.md
+++ b/doc/opencv.md
@@ -104,7 +104,7 @@ In-place filtering not supported.
 
 Notes on parameters:
 * `src`, `dst`, `kernelX`, `kernelY` - the number of channels must match between source and destination. The types must match between source, destination and kernels. However, the kernels must have 1 channel.
-* `anchor` - values other than `(-1, -1)` are not supported.
+* `anchor` - values other than `(-1, -1)` or the midpoints of the X and Y kernels respectively are not supported.
 * `delta` - values other than `0.0` are not supported.
 * `borderType` - pixel extrapolation method.
 Supported [OpenCV border types](https://docs.opencv.org/4.10.0/d2/de8/group__core__array.html#ga209f2f4869e304c82d07739337eae7c5) are: