diff --git a/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/Array.java b/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/Array.java
index bc5b0420839cb..530280eba7d4b 100644
--- a/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/Array.java
+++ b/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/Array.java
@@ -8,7 +8,6 @@
 import com.oracle.truffle.api.interop.TruffleObject;
 import com.oracle.truffle.api.library.ExportLibrary;
 import com.oracle.truffle.api.library.ExportMessage;
-import org.enso.interpreter.dsl.AcceptsError;
 import org.enso.interpreter.dsl.Builtin;
 import org.enso.interpreter.node.expression.builtin.error.InvalidArrayIndexError;
 import org.enso.interpreter.runtime.Context;
@@ -122,21 +121,6 @@ boolean isArrayElementReadable(long index) {
     return index < getArraySize() && index >= 0;
   }
 
-  @ExportMessage
-  void writeArrayElement(long index, Object value) {
-    items[(int) index] = value;
-  }
-
-  @ExportMessage
-  boolean isArrayElementModifiable(long index) {
-    return isArrayElementReadable(index);
-  }
-
-  @ExportMessage
-  boolean isArrayElementInsertable(long index) {
-    return false;
-  }
-
   @ExportMessage
   String toDisplayString(boolean b) {
     return toString();