diff --git a/httpx/module.go b/httpx/module.go
deleted file mode 100644
index 0e441e6..0000000
--- a/httpx/module.go
+++ /dev/null
@@ -1,2 +0,0 @@
-package httpx
-
diff --git a/tests/dogs.xgo b/tests/dogs.xgo
new file mode 100644
index 0000000..3105e67
--- /dev/null
+++ b/tests/dogs.xgo
@@ -0,0 +1,8 @@
+
+export {
+	"new": func(name) {
+		return {
+			name: name
+		}
+	}
+}
diff --git a/tests/import.xgo b/tests/import.xgo
new file mode 100644
index 0000000..3106eee
--- /dev/null
+++ b/tests/import.xgo
@@ -0,0 +1,6 @@
+fmt := import("fmt")
+dogs := import("./tests/dogs")
+
+dog := dogs.new("check")
+fmt.println(dog)
+
diff --git a/cjson/dec.go b/xmodules/cjson/dec.go
similarity index 100%
rename from cjson/dec.go
rename to xmodules/cjson/dec.go
diff --git a/cjson/main.go b/xmodules/cjson/main.go
similarity index 100%
rename from cjson/main.go
rename to xmodules/cjson/main.go
diff --git a/httpx/http.go b/xmodules/httpx/http.go
similarity index 100%
rename from httpx/http.go
rename to xmodules/httpx/http.go
diff --git a/xmodules/httpx/module.go b/xmodules/httpx/module.go
new file mode 100644
index 0000000..04534c2
--- /dev/null
+++ b/xmodules/httpx/module.go
@@ -0,0 +1,7 @@
+package httpx
+
+import "github.com/d5/tengo/v2"
+
+var Module = map[string] tengo.Object {
+}
+
diff --git a/httpx/request.go b/xmodules/httpx/request.go
similarity index 100%
rename from httpx/request.go
rename to xmodules/httpx/request.go
diff --git a/httpx/url.go b/xmodules/httpx/url.go
similarity index 100%
rename from httpx/url.go
rename to xmodules/httpx/url.go
diff --git a/logx/main.go b/xmodules/logx/main.go
similarity index 100%
rename from logx/main.go
rename to xmodules/logx/main.go
diff --git a/xmodules/modules.go b/xmodules/modules.go
new file mode 100644
index 0000000..00a6e07
--- /dev/null
+++ b/xmodules/modules.go
@@ -0,0 +1,18 @@
+package xmodules
+
+import "github.com/d5/tengo/v2/stdlib"
+import "surdeus.su/core/xgo/xmodules/cjson"
+import "surdeus.su/core/xgo/xmodules/logx"
+import "surdeus.su/core/xgo/xmodules/paths"
+import "surdeus.su/core/xgo/xmodules/httpx"
+import "github.com/d5/tengo/v2"
+
+// The main map to import all the implemented modules.
+var Modules = func() *tengo.ModuleMap {
+	ret := stdlib.GetModuleMap(stdlib.AllModuleNames()...)
+	ret.AddBuiltinModule("cjson", cjson.Module)
+	ret.AddBuiltinModule("log", logx.Module)
+	ret.AddBuiltinModule("paths", paths.Module)
+	ret.AddBuiltinModule("http", httpx.Module)
+	return ret
+}()
diff --git a/paths/main.go b/xmodules/paths/main.go
similarity index 100%
rename from paths/main.go
rename to xmodules/paths/main.go
diff --git a/xtool/main.go b/xtool/main.go
index 62efbc8..2f97a89 100644
--- a/xtool/main.go
+++ b/xtool/main.go
@@ -14,14 +14,11 @@ import (
 
 	"github.com/d5/tengo/v2"
 	"github.com/d5/tengo/v2/parser"
-	"github.com/d5/tengo/v2/stdlib"
 
 )
 
 import "surdeus.su/core/cli/mtool"
-import "surdeus.su/core/xgo/cjson"
-import "surdeus.su/core/xgo/logx"
-import "surdeus.su/core/xgo/paths"
+import "surdeus.su/core/xgo/xmodules"
 
 const (
 	sourceFileExt = ".xgo"
@@ -54,10 +51,8 @@ func Run(flags *mtool.Flags) {
 		fmt.Println(version)
 		return
 	}
-	modules := stdlib.GetModuleMap(stdlib.AllModuleNames()...)
-	modules.AddBuiltinModule("cjson", cjson.Module)
-	modules.AddBuiltinModule("log", logx.Module)
-	modules.AddBuiltinModule("paths", paths.Module)
+
+	modules := xmodules.Modules
 	if len(iargs) == 0 {
 		// REPL
 		RunREPL(modules, os.Stdin, os.Stdout)
@@ -216,7 +211,14 @@ func RunREPL(modules *tengo.ModuleMap, in io.Reader, out io.Writer) {
 		}
 
 		file = addPrints(file)
-		c := tengo.NewCompiler(srcFile, symbolTable, constants, modules, nil)
+		c := tengo.NewCompiler(
+			srcFile,
+			symbolTable,
+			constants,
+			modules,
+			nil,
+		)
+		c.SetImportFileExt(sourceFileExt)
 		if err := c.Compile(file); err != nil {
 			_, _ = fmt.Fprintln(out, err.Error())
 			continue
@@ -247,6 +249,7 @@ func compileSrc(
 	}
 
 	c := tengo.NewCompiler(srcFile, nil, nil, modules, nil)
+	c.SetImportFileExt(sourceFileExt)
 	c.EnableFileImport(true)
 	if resolvePath {
 		c.SetImportDir(filepath.Dir(inputFile))