diff --git a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/fastr/FastRInterop.java b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/fastr/FastRInterop.java
index a182c4bf49f21d0fbc21017fc50dde1c77c16816..cf00af05aac70b7a0bb357af3d8dd564c42f8e3b 100644
--- a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/fastr/FastRInterop.java
+++ b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/fastr/FastRInterop.java
@@ -212,7 +212,7 @@ public class FastRInterop {
 
             File file = new File(path);
             try {
-                Builder<IOException, RuntimeException, RuntimeException> sourceBuilder = Source.newBuilder(file).name(file.getName()).internal();
+                Builder<IOException, RuntimeException, RuntimeException> sourceBuilder = Source.newBuilder(file).name(file.getName());
                 if (languageId != null) {
                     sourceBuilder.language(languageId);
                 }