diff --git a/mk2rbc/mk2rbc_test.go b/mk2rbc/mk2rbc_test.go
index 1ba273b..dbb14a9 100644
--- a/mk2rbc/mk2rbc_test.go
+++ b/mk2rbc/mk2rbc_test.go
@@ -1112,6 +1112,46 @@
 `,
 	},
 	{
+		desc:   "Dynamic inherit path that lacks necessary hint",
+		mkname: "product.mk",
+		in: `
+#RBC# include_top foo
+$(call inherit-product,$(MY_VAR)/font.mk)
+
+#RBC# include_top foo
+
+# There's some space and even this comment between the include_top and the inherit-product
+
+$(call inherit-product,$(MY_VAR)/font.mk)
+
+$(call inherit-product,$(MY_VAR)/font.mk)
+`,
+		expected: `#RBC# include_top foo
+load("//build/make/core:product_config.rbc", "rblf")
+load("//foo:font.star|init", _font_init = "init")
+
+def init(g, handle):
+  cfg = rblf.cfg(handle)
+  _entry = {
+    "foo/font.mk": ("_font", _font_init),
+  }.get("%s/font.mk" % g.get("MY_VAR", ""))
+  (_varmod, _varmod_init) = _entry if _entry else (None, None)
+  if not _varmod_init:
+    rblf.mkerror("product.mk", "Cannot find %s" % ("%s/font.mk" % g.get("MY_VAR", "")))
+  rblf.inherit(handle, _varmod, _varmod_init)
+  #RBC# include_top foo
+  # There's some space and even this comment between the include_top and the inherit-product
+  _entry = {
+    "foo/font.mk": ("_font", _font_init),
+  }.get("%s/font.mk" % g.get("MY_VAR", ""))
+  (_varmod, _varmod_init) = _entry if _entry else (None, None)
+  if not _varmod_init:
+    rblf.mkerror("product.mk", "Cannot find %s" % ("%s/font.mk" % g.get("MY_VAR", "")))
+  rblf.inherit(handle, _varmod, _varmod_init)
+  rblf.mk2rbc_error("product.mk:11", "inherit-product/include statements must not be prefixed with a variable, or must include a #RBC# include_top comment beforehand giving a root directory to search.")
+`,
+	},
+	{
 		desc:   "Ignore make rules",
 		mkname: "product.mk",
 		in: `