diff --git a/scripts/common.py b/scripts/common.py
index 5a656e75..63c1c4da 100644
--- a/scripts/common.py
+++ b/scripts/common.py
@@ -2250,6 +2250,17 @@ def resolve_platform_cores(
             for c in core_set
             if (profile := preferred_profile(index, c)) is not None
         }
+        # A name the platform launches both ways designates its libretro
+        # build too. Batocera, Recalbox and RetroBat run pcsx2 standalone and
+        # as LRPS2, two profiles: the key match kept the standalone one and
+        # LRPS2's files never reached their packs.
+        result |= {
+            profile
+            for c in config.get("dual_mode_cores") or []
+            for profile in index.get(str(c), set())
+            if "libretro" in str(profiles[profile].get("type", ""))
+            and not profiles[profile].get("built_by")
+        }
         # Support "all_libretro" as a list element: combines all libretro
         # profiles with explicitly listed standalone cores (e.g. RetroDECK
         # ships RetroArch + standalone emulators)
diff --git a/tests/test_batocera_cores.py b/tests/test_batocera_cores.py
index 1746ab4e..a7325078 100644
--- a/tests/test_batocera_cores.py
+++ b/tests/test_batocera_cores.py
@@ -122,5 +122,24 @@ class AnEmulatorLaunchedBothWaysGetsBothLayouts(unittest.TestCase):
         )
 
 
+class DualModeNameReachesTheLibretroBuild(unittest.TestCase):
+    """Batocera runs pcsx2 standalone and as LRPS2. The name matched the
+    standalone profile's key and lrps2, which lists pcsx2 in cores:, was
+    left out of the platform."""
+
+    def test_both_builds_of_a_dual_mode_name_resolve(self):
+        from common import resolve_platform_cores
+
+        profiles = {
+            "pcsx2": {"type": "standalone", "cores": ["pcsx2"]},
+            "lrps2": {"type": "libretro", "cores": ["lrps2", "pcsx2"]},
+            "mame0278": {"type": "libretro", "cores": ["pcsx2"], "built_by": ["x"]},
+        }
+        config = {"cores": ["pcsx2"], "standalone_cores": ["pcsx2"]}
+        self.assertEqual(resolve_platform_cores(config, profiles), {"pcsx2"})
+        config["dual_mode_cores"] = ["pcsx2"]
+        self.assertEqual(resolve_platform_cores(config, profiles), {"pcsx2", "lrps2"})
+
+
 if __name__ == "__main__":
     unittest.main()