diff --git a/core/src/avm1/globals/system_security.rs b/core/src/avm1/globals/system_security.rs
index b5bfb12fd..b74de6dd0 100644
--- a/core/src/avm1/globals/system_security.rs
+++ b/core/src/avm1/globals/system_security.rs
@@ -65,7 +65,7 @@ fn get_sandbox_type<'gc>(
             SandboxType::Remote => "remote",
             SandboxType::LocalWithFile => "localWithFile",
             SandboxType::LocalWithNetwork => "localWithNetwork",
-            SandboxType::LocalTrusted => "localTrusted",
+            SandboxType::LocalTrusted | SandboxType::Application => "localTrusted",
         },
     )
     .into())
diff --git a/core/src/avm2/globals/flash/system/security.rs b/core/src/avm2/globals/flash/system/security.rs
index f9b16c25e..10dc3df26 100644
--- a/core/src/avm2/globals/flash/system/security.rs
+++ b/core/src/avm2/globals/flash/system/security.rs
@@ -44,6 +44,7 @@ pub fn get_sandbox_type<'gc>(
         SandboxType::LocalWithFile => "localWithFile",
         SandboxType::LocalWithNetwork => "localWithNetwork",
         SandboxType::LocalTrusted => "localTrusted",
+        SandboxType::Application => "application",
     };
     return Ok(AvmString::new_utf8(activation.context.gc_context, sandbox_type).into());
 }
diff --git a/core/src/sandbox.rs b/core/src/sandbox.rs
index e4dbeed77..7d9bcd954 100644
--- a/core/src/sandbox.rs
+++ b/core/src/sandbox.rs
@@ -24,4 +24,7 @@ pub enum SandboxType {
 
     /// The movie is a trusted local movie with access to both filesystem and network.
     LocalTrusted,
+
+    /// The movie is an AIR application with access to both filesystem and network.
+    Application,
 }