diff --git a/rust/rust.go b/rust/rust.go
index 3cc7868..de1d65e 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -577,7 +577,7 @@
 
 func (mod *Module) CcLibrary() bool {
 	if mod.compiler != nil {
-		if _, ok := mod.compiler.(*libraryDecorator); ok {
+		if _, ok := mod.compiler.(libraryInterface); ok {
 			return true
 		}
 	}
@@ -1542,7 +1542,7 @@
 // Overrides ApexModule.IsInstallabeToApex()
 func (mod *Module) IsInstallableToApex() bool {
 	if mod.compiler != nil {
-		if lib, ok := mod.compiler.(*libraryDecorator); ok && (lib.shared() || lib.dylib()) {
+		if lib, ok := mod.compiler.(libraryInterface); ok && (lib.shared() || lib.dylib()) {
 			return true
 		}
 		if _, ok := mod.compiler.(*binaryDecorator); ok {