diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/build/internal/core/scannerconfig/PerFileSettingsCalculator.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/build/internal/core/scannerconfig/PerFileSettingsCalculator.java
index 0d48acce97e..879028c45ee 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/build/internal/core/scannerconfig/PerFileSettingsCalculator.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/build/internal/core/scannerconfig/PerFileSettingsCalculator.java
@@ -311,7 +311,7 @@ public class PerFileSettingsCalculator {
 		}
 		
 		public String[] getExtensions(){
-			return (String[])fExts.clone();
+			return fExts.clone();
 		}
 
 		@Override