diff --git a/scripts/generate_site.py b/scripts/generate_site.py
index e148155f..c10d6196 100644
--- a/scripts/generate_site.py
+++ b/scripts/generate_site.py
@@ -1227,7 +1227,11 @@ def _page_description(markdown: str, relative: Path, title: str) -> str:
     if key.startswith("platforms/") and relative.stem != "index":
         return f"{title}: declared BIOS contract, verification mode, coverage, destinations and emulator complement."
     if key.startswith("emulators/") and relative.stem != "index":
-        return f"{title}: source-pinned emulator firmware profile with paths, hashes, requirements and validation behavior."
+        # Pinned only when the profile names the revision it was read at:
+        # 48 pages without one called themselves source-pinned.
+        pinned = PAGE_DATA.get(key, {}).get("about", {}).get("version")
+        kind = "source-pinned emulator firmware profile" if pinned else "emulator firmware profile"
+        return f"{title}: {kind} with paths, hashes, requirements and validation behavior."
     if key.startswith("systems/") and relative.stem != "index":
         return f"{title}: indexed firmware files, hashes, variants, provenance and platform or emulator usage."
 
diff --git a/tests/test_site_exports.py b/tests/test_site_exports.py
index c9550f79..da1d2d30 100644
--- a/tests/test_site_exports.py
+++ b/tests/test_site_exports.py
@@ -565,5 +565,24 @@ class EmulatorPartsCarryTheirIdentity(unittest.TestCase):
         )
 
 
+class OnlyAPinnedProfileClaimsAPin(unittest.TestCase):
+    """Redream, with no revision at all, was described as source-pinned."""
+
+    def test_the_description_follows_the_pin(self):
+        from unittest import mock  # noqa: PLC0415
+
+        import generate_site  # noqa: PLC0415
+
+        pages = {
+            "emulators/pinned.md": {"about": {"version": "a" * 40}},
+            "emulators/redream.md": {},
+        }
+        with mock.patch.dict(generate_site.PAGE_DATA, pages, clear=True):
+            pinned = generate_site._page_description("", Path("emulators/pinned.md"), "P")
+            loose = generate_site._page_description("", Path("emulators/redream.md"), "R")
+        self.assertIn("source-pinned", pinned)
+        self.assertNotIn("source-pinned", loose)
+
+
 if __name__ == "__main__":
     unittest.main()