diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/GeneratedMakefileBuilder.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/GeneratedMakefileBuilder.java
index 4a39efc0dbb..5dfe0736dd6 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/GeneratedMakefileBuilder.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/GeneratedMakefileBuilder.java
@@ -944,7 +944,7 @@ public class GeneratedMakefileBuilder extends ACBuilder {
 						break;
 					}
 					case FULL_BUILD: {
-						makeArgs.add("clean"); //$NON-NLS-1$        
+//						makeArgs.add("clean"); //$NON-NLS-1$        
 						makeArgs.add("pre-build"); //$NON-NLS-1$ 
 						makeArgs.add("main-build"); //$NON-NLS-1$                           
 						break;