diff --git a/static_core/plugins/ets/GenerateStdLib.cmake b/static_core/plugins/ets/GenerateStdLib.cmake
index 3bfde506ac3e8dca664748fdcfadec00748bc417..c1720583d093f156f833e8079743502fa773c168 100644
--- a/static_core/plugins/ets/GenerateStdLib.cmake
+++ b/static_core/plugins/ets/GenerateStdLib.cmake
@@ -15,9 +15,9 @@ function(regenerate_and_check_stdlib)
     # NOTE(ivan-tyulyandin): add array.sh and related generated files
     # Preparations to check generated against used code equality
     set(ESCOMPAT "stdlib/escompat")
-    set(ESCOMPAT_GEN_FILES "DataView.ets" "TypedUArrays.ets" "TypedArrays.ets" "Array.ets")
+    set(ESCOMPAT_GEN_FILES "TypedUArrays.ets" "TypedArrays.ets" "Array.ets")
     set(STD_CORE "stdlib/std/core")
-    set(STD_CORE_GEN_FILES "Function.ets" "Tuple.ets" "BuiltinArray.ets" "BuiltinArraySort.ets" "BuiltinArrayAlgorithms.ets")
+    set(STD_CORE_GEN_FILES "DataView.ets" "Function.ets" "Tuple.ets" "BuiltinArray.ets" "BuiltinArraySort.ets" "BuiltinArrayAlgorithms.ets")
     set(STD_INTEROP "stdlib/std/interop/js")
     set(STD_INTEROP_GEN_FILES "InteropTransferHelper.ets")
     set(GEN_FILES )
diff --git a/static_core/plugins/ets/stdlib/escompat/ArrayBuffer.ets b/static_core/plugins/ets/stdlib/escompat/ArrayBuffer.ets
index f4bcea23746b666d3ce2fc19db1deaeab71d0795..9595641c64475286e699016bb065b17215863c87 100644
--- a/static_core/plugins/ets/stdlib/escompat/ArrayBuffer.ets
+++ b/static_core/plugins/ets/stdlib/escompat/ArrayBuffer.ets
@@ -19,7 +19,7 @@ package escompat;
  * Either ArrayBuffer
  */
 // NOTE (kprokopenko): make abstract after abstract overloads get to work
-abstract class Buffer {
+export abstract class Buffer {
     abstract getByteLength(): int
     abstract at(i: int): byte
     abstract set(i: int, b: byte)
diff --git a/static_core/plugins/ets/stdlib/escompat/DataView.ets b/static_core/plugins/ets/stdlib/std/core/DataView.ets
similarity index 99%
rename from static_core/plugins/ets/stdlib/escompat/DataView.ets
rename to static_core/plugins/ets/stdlib/std/core/DataView.ets
index d1db0e15ac483b9dfa56c838a95d22b5725b82e9..634c9a21092d48e683170d1f1c17b58268d29d07 100644
--- a/static_core/plugins/ets/stdlib/escompat/DataView.ets
+++ b/static_core/plugins/ets/stdlib/std/core/DataView.ets
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-package escompat;
+package std.core;
 
 export final class DataView implements ArrayBufferView {
     /** Underlying buffer */
diff --git a/static_core/plugins/ets/templates/stdlib/DataView.ets.j2 b/static_core/plugins/ets/templates/stdlib/DataView.ets.j2
index eec34ba5fb2d5dd1c4518d46bacad9af0cc97db0..83dc89838cc25fe277991624260a58d229790edf 100644
--- a/static_core/plugins/ets/templates/stdlib/DataView.ets.j2
+++ b/static_core/plugins/ets/templates/stdlib/DataView.ets.j2
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-package escompat;
+package std.core;
 
 export final class DataView implements ArrayBufferView {
     /** Underlying buffer */
diff --git a/static_core/plugins/ets/templates/stdlib/genlib.sh b/static_core/plugins/ets/templates/stdlib/genlib.sh
index 7a91a491ca949961973137e22ff80eebe0acf4d2..3c13115af4ec5d70c44c14afdc11460c3b7726ee 100755
--- a/static_core/plugins/ets/templates/stdlib/genlib.sh
+++ b/static_core/plugins/ets/templates/stdlib/genlib.sh
@@ -24,7 +24,7 @@ readonly ARR="${GEN_ESCOMPAT_PATH}/Array.ets"
 readonly BLT_ARR="${GEN_STDCORE_PATH}/BuiltinArray.ets"
 readonly BLT_ARR_SORT="${GEN_STDCORE_PATH}/BuiltinArraySort.ets"
 readonly BLT_ARR_ARG="${GEN_STDCORE_PATH}/BuiltinArrayAlgorithms.ets"
-readonly DATAVIEW="${GEN_ESCOMPAT_PATH}/DataView.ets"
+readonly DATAVIEW="${GEN_STDCORE_PATH}/DataView.ets"
 readonly TYPED_ARR="${GEN_ESCOMPAT_PATH}/TypedArrays.ets"
 readonly TYPED_UARR="${GEN_ESCOMPAT_PATH}/TypedUArrays.ets"
 readonly FUNC="${GEN_STDCORE_PATH}/Function.ets"
diff --git a/static_core/plugins/ets/tests/stdlib-templates/spec/generic/issue14700.ets b/static_core/plugins/ets/tests/stdlib-templates/spec/generic/issue14700.ets
index 2946c518f0ca236fea3d58a889283392fee252e1..58cd8c4f3c9f541454a6b8e8e57117cc244efbc5 100644
--- a/static_core/plugins/ets/tests/stdlib-templates/spec/generic/issue14700.ets
+++ b/static_core/plugins/ets/tests/stdlib-templates/spec/generic/issue14700.ets
@@ -22,10 +22,10 @@ tags: []
 ---*/
 
 
-class Buffer {
+class BufferA {
 }
 
-class TestArrayBuffer extends Buffer {
+class TestArrayBuffer extends BufferA {
     constructor(size:  number) {
     }
 }