diff --git a/godot-core/src/builtin/string/gstring.rs b/godot-core/src/builtin/string/gstring.rs
index 59ee9f835..4c0fa71ed 100644
--- a/godot-core/src/builtin/string/gstring.rs
+++ b/godot-core/src/builtin/string/gstring.rs
@@ -72,6 +72,9 @@ pub struct GString {
     _opaque: OpaqueString,
 }
 
+// SAFETY: The Godot implementation of String uses an atomic copy on write pointer, making this thread-safe as we never write to it unless we own it.
+unsafe impl Send for GString {}
+
 impl GString {
     /// Construct a new empty `GString`.
     pub fn new() -> Self {