diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/properties/FileListControl.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/properties/FileListControl.java
index f087a66f94c..e9c869d6f32 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/properties/FileListControl.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/properties/FileListControl.java
@@ -239,7 +239,8 @@ public class FileListControl {
 						String result;
 						switch (type) {
 							case IOption.BROWSE_DIR :
-								DirectoryDialog dialog = new DirectoryDialog(getParentShell(), SWT.OPEN);
+								DirectoryDialog dialog = new DirectoryDialog(getParentShell(), 
+										SWT.OPEN|SWT.APPLICATION_MODAL);
 								currentName = getText().getText();
 								if(currentName != null && currentName.trim().length() != 0) {
 									dialog.setFilterPath(currentName);