diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ErrorParserManager.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ErrorParserManager.java
index e2afadb3156..d58c4c521c6 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ErrorParserManager.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/ErrorParserManager.java
@@ -56,9 +56,9 @@ public class ErrorParserManager extends OutputStream {
 
 	private String previousLine;
 	private OutputStream outputStream;
-	private StringBuffer currentLine = new StringBuffer();
+	private StringBuilder currentLine = new StringBuilder();
 
-	private StringBuffer scratchBuffer = new StringBuffer();
+	private StringBuilder scratchBuffer = new StringBuilder();
 	
 	private boolean hasErrors = false;