diff --git a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/formatting/IIndentationInformation.java b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/formatting/IIndentationInformation.java
index 6f870413f..3a986e338 100644
--- a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/formatting/IIndentationInformation.java
+++ b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/formatting/IIndentationInformation.java
@@ -24,7 +24,7 @@ public interface IIndentationInformation {
 	 */
 	class Default implements IIndentationInformation{
 		public String getIndentString() {
-			return "    ";
+			return "\t";
 		}
 	}
 }