diff --git a/src/org/rascalmpl/library/util/PathConfig.java b/src/org/rascalmpl/library/util/PathConfig.java
index f5584977129..56c205af84c 100644
--- a/src/org/rascalmpl/library/util/PathConfig.java
+++ b/src/org/rascalmpl/library/util/PathConfig.java
@@ -543,6 +543,7 @@ public static PathConfig fromSourceProjectRascalManifest(ISourceLocation manifes
                         switch (mode) {
                             case INTERPRETER:
                                 srcsWriter.appendAll(childConfig.getSrcs());
+                                libsWriter.append(childConfig.getBin());
                                 break;
                             case COMPILER:
                                 libsWriter.append(setTargetScheme(projectLoc));