diff --git a/intrinsiccv/include/intrinsiccv/morphology/workspace.h b/intrinsiccv/include/intrinsiccv/morphology/workspace.h
index 460fa7fe0f6081006fc8b788b7ec7565b9a2ca3d..7ec6f579c0110bfef01669e15820935a072ffacb 100644
--- a/intrinsiccv/include/intrinsiccv/morphology/workspace.h
+++ b/intrinsiccv/include/intrinsiccv/morphology/workspace.h
@@ -341,7 +341,9 @@ class MorphologyWorkspace final {
   void copy_data(Rows<const T> src_rows, Rows<T> dst_rows,
                  size_t length) INTRINSICCV_STREAMING_COMPATIBLE {
 #if INTRINSICCV_TARGET_SME2
-    Rectangle rect{length, static_cast<size_t>(1)};
+    // 'sve2::apply_operation_by_rows' handles it as being 1-channel
+    // so width must be multiplied in order to copy all the data
+    Rectangle rect{length * src_rows.channels(), std::size_t{1}};
     CopyOperation<T> operation;
     sve2::apply_operation_by_rows(operation, rect, src_rows, dst_rows);
 #else