diff --git a/source/dub/generators/visuald.d b/source/dub/generators/visuald.d
index a9371bc..dc4b429 100644
--- a/source/dub/generators/visuald.d
+++ b/source/dub/generators/visuald.d
@@ -517,7 +517,7 @@
 	return pack.replace(":", "_");
 }
 
-private string vsArchitecture(string architecture)
+private @property string vsArchitecture(string architecture)
 {
 	switch(architecture) {
 		default: logWarn("Unsupported platform('%s'), defaulting to x86", architecture); goto case;