diff --git a/r/org.eclipse.statet.r.core/src/org/eclipse/statet/internal/r/core/builder/RBuilder.java b/r/org.eclipse.statet.r.core/src/org/eclipse/statet/internal/r/core/builder/RBuilder.java
index 08cd2e0..aa15016 100644
--- a/r/org.eclipse.statet.r.core/src/org/eclipse/statet/internal/r/core/builder/RBuilder.java
+++ b/r/org.eclipse.statet.r.core/src/org/eclipse/statet/internal/r/core/builder/RBuilder.java
@@ -105,6 +105,8 @@
 		this.sourceContainters= project.getRawBuildpath();
 		this.pkgRootPath= project.getPkgRootPath();
 		this.currentSourceContainer= null;
+		
+		initRd(project);
 	}
 	
 	private boolean isValidSourceFolder(final IResource resource) {