diff --git a/.gitignore b/.gitignore
index 89b185eb..f56044eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,11 @@ build/
 # Rust build artifacts
 src/simulator/target/
 .local/
+
+# Compiled GDExtension binaries — built per-host, never rsync from one arch to another.
+# macOS has no cargo (or a stale one); apricot compiles. Including these in rsync
+# clobbers the apricot-side fresh binary with our stale mac-side one.
+src/game/engine/addons/magic_civ_physics/*.so
+src/game/engine/addons/magic_civ_physics/*.dll
+src/game/engine/addons/magic_civ_physics/*.dylib
+src/game/engine/addons/magic_civ_physics/*.framework/