diff --git a/plugins/org.eclipse.dltk.javascript.core/src/org/eclipse/dltk/internal/javascript/validation/TypeInfoValidator.java b/plugins/org.eclipse.dltk.javascript.core/src/org/eclipse/dltk/internal/javascript/validation/TypeInfoValidator.java
index 1aa6a4d..3087520 100644
--- a/plugins/org.eclipse.dltk.javascript.core/src/org/eclipse/dltk/internal/javascript/validation/TypeInfoValidator.java
+++ b/plugins/org.eclipse.dltk.javascript.core/src/org/eclipse/dltk/internal/javascript/validation/TypeInfoValidator.java
@@ -1240,9 +1240,9 @@
 		private static final boolean EXPERIMENTAL = false;
 
 		private boolean isArrayLookup(ASTNode expression) {
-			if (EXPERIMENTAL && expression instanceof GetArrayItemExpression)
+			if (expression instanceof GetArrayItemExpression)
 				return true;
-			if (EXPERIMENTAL && expression instanceof PropertyExpression) {
+			if (expression instanceof PropertyExpression) {
 				return isArrayLookup(((PropertyExpression) expression)
 						.getObject());
 			}