diff --git a/.mps/modules.xml b/.mps/modules.xml
new file mode 100644
index 0000000..0d3eb4a
--- /dev/null
+++ b/.mps/modules.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="MPSProject">
+    <projectModules>
+      <modulePath path="$PROJECT_DIR$/languages/SemAnno.runtime/SemAnno.runtime.msd" folder="" />
+      <modulePath path="$PROJECT_DIR$/languages/SemAnno.sandbox/SemAnno.sandbox.msd" folder="" />
+      <modulePath path="$PROJECT_DIR$/languages/SemAnno/SemAnno.mpl" folder="" />
+    </projectModules>
+  </component>
+</project>
\ No newline at end of file