diff --git a/sv-parser-pp/testcases/test20.sv b/sv-parser-pp/testcases/test20.sv
new file mode 100644
index 0000000..63fe552
--- /dev/null
+++ b/sv-parser-pp/testcases/test20.sv
@@ -0,0 +1,4 @@
+module and_op (a, b, c);
+  // a
+  `include "test2.svh"
+endmodule