diff --git a/Assembly.cpp b/Assembly.cpp
index c0dc6fd5e..4b7d98345 100644
--- a/Assembly.cpp
+++ b/Assembly.cpp
@@ -39,7 +39,7 @@ int AssemblyItem::deposit() const
 		return 0;
 	default:;
 	}
-	assert(false);
+	return 0;
 }
 
 unsigned Assembly::bytesRequired() const