diff --git a/src/main.d b/src/main.d
index 54ae665..3594b45 100644
--- a/src/main.d
+++ b/src/main.d
@@ -127,6 +127,7 @@ int run(string[] args)
 	const(string[]) absImportPaths = importPaths.map!(
 		a => a.absolutePath().buildNormalizedPath()).array();
 
+	ModuleCache.includeParameterSymbols = true;
 	if (absImportPaths.length)
 		ModuleCache.addImportPaths(absImportPaths);