diff --git a/reflect-config.json b/reflect-config.json
index 7f264ed..9e67cb6 100644
--- a/reflect-config.json
+++ b/reflect-config.json
@@ -2,43 +2,50 @@
   {
     "name" : "java.lang.String",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.lang.Boolean",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.lang.Integer",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.lang.Long",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.lang.Double",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.lang.Float",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "valueOf", "parameterTypes" : ["java.lang.String"] }
     ]
   },
   {
     "name" : "java.nio.file.Path",
     "methods" : [
-      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] }
+      { "name" : "<init>", "parameterTypes" : ["java.lang.String"] },
+      { "name" : "of", "parameterTypes" : ["java.lang.String"] }
     ]
   }
 ]
\ No newline at end of file
diff --git a/src/main/java/it/cavallium/rockserver/core/Main.java b/src/main/java/it/cavallium/rockserver/core/Main.java
index 3b2fbf7..8160433 100644
--- a/src/main/java/it/cavallium/rockserver/core/Main.java
+++ b/src/main/java/it/cavallium/rockserver/core/Main.java
@@ -39,7 +39,7 @@ public class Main {
 				.setDefault("main")
 				.help("Specify database name");
 		parser.addArgument("-c", "--config")
-				.type(Path.class)
+				.type(String.class)
 				.help("Specify the rockserver-core.conf file path. Do not set if the database is not local");
 		parser.addArgument("-p", "--print-default-config")
 				.type(Boolean.class)