diff --git a/src/main/kotlin/table/FunctionTable.kt b/src/main/kotlin/table/FunctionTable.kt
index 4390387..012c6a7 100644
--- a/src/main/kotlin/table/FunctionTable.kt
+++ b/src/main/kotlin/table/FunctionTable.kt
@@ -14,8 +14,8 @@ object FunctionTable {
         .enableAnnotationInfo()
         .whitelistPackages("function.builtin")
 
-    private val allBuiltIns = with(classGraph.scan()) {
-        getClassesWithAnnotation(FunctionNames::class.qualifiedName)
+    private val allBuiltIns = classGraph.scan().use { scan ->
+        scan.getClassesWithAnnotation(FunctionNames::class.qualifiedName)
             .map { it.loadClass() }
             .filterIsInstance<Class<out LispFunction>>()
             .toSet()