diff --git a/Gruntfile.js b/Gruntfile.js
index 6340c9b..063cb98 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -47,6 +47,18 @@ module.exports = function(grunt) {
 		}
 	});
 
+	grunt.registerTask("cleanPkgd", function() {
+		if (grunt.file.exists("dist/pkgd/eg.pkgd.js")) {
+			grunt.file["delete"]("dist/pkgd/eg.pkgd.js", { force: true });
+		}
+		if (grunt.file.exists("dist/pkgd/flicking.pkgd.js")) {
+			grunt.file["delete"]("dist/pkgd/flicking.pkgd.js", { force: true });
+		}
+		if (grunt.file.exists("dist/pkgd/infiniteGrid.pkgd.js")) {
+			grunt.file["delete"]("dist/pkgd/infiniteGrid.pkgd.js", { force: true });
+		}
+	});
+
 	grunt.registerTask("validate-commit", function() {
 		if (!grunt.file.exists(".git/hooks/commit-msg")) {
 			var fs = require("fs");
@@ -56,7 +68,7 @@ module.exports = function(grunt) {
 	});
 
 	grunt.registerTask("docBuild", ["copy:doc", "clean", "jsdoc"]);
-	grunt.registerTask("build", ["concat", "uglify", "docBuild"]);
+	grunt.registerTask("build", ["concat", "uglify", "cleanPkgd", "docBuild"]);
 	// grunt.registerTask("build", ["concat", "uglify", "copy:lib", "docBuild"]);
 	grunt.registerTask("default", ["validate-commit","jshint", "jscs", "build", "test"]);
 	grunt.registerTask("check", ["jshint", "jscs", "test"]);
diff --git a/config/concat.js b/config/concat.js
index fc3d744..0790a2f 100644
--- a/config/concat.js
+++ b/config/concat.js
@@ -2,18 +2,44 @@ var jsonfile = require('jsonfile')
 var dependency = require('./dependency')
 var version = jsonfile.readFileSync("package.json").version;
 
+function changeSrc(src) {
+	// remove "use strict";
+	// change version;
+	src = src.replace(/(^|\n)[ \t]*('use strict'|"use strict");?\s*/g, "$1").replace(/#__VERSION__#/g, version);
+	return src;
+}
+
 module.exports = {
-	options: {
-		banner: "<%=banner.common %>\"use strict\";\n",
-		process: function(src) {
-			// remove "use strict";
-			// change version;
-			src = src.replace(/(^|\n)[ \t]*('use strict'|"use strict");?\s*/g, "$1").replace(/#__VERSION__#/g, version);
-			return src;
-		}
-	},
 	build: {
+		options: {
+			banner: "<%=banner.common %>\"use strict\";\n",
+			process: changeSrc
+		},
 		src: dependency.egCore.concat(dependency.egExtend, ["src/visible.js", "src/movableCoord.js", "src/flicking.js",  "src/infiniteGrid.js"]),
 		dest: "dist/<%=pkg.outputname%>.js"
+	},
+	pkgd_eg: {
+		options : {
+			banner : "<%=banner.common %><%=banner.pkgd('egjs') %><%=concat.pkgd_eg.src.join('\\n* ')%>\n*/\n",
+			process: changeSrc
+		},
+		src : dependency.hammer.concat(dependency.outlayer, dependency.egCore, dependency.egExtend, ["src/visible.js", "src/movableCoord.js", "src/flicking.js",  "src/infiniteGrid.js"]),
+		dest : "dist/pkgd/<%=pkg.outputname%>.pkgd.js"
+	},
+	pkgd_flicking: {
+		options : {
+			banner : "<%=banner.common %><%=banner.pkgd('eg.flicking') %><%=concat.pkgd_flicking.src.join('\\n* ')%>\n*/\n",
+			process: changeSrc
+		},
+		src : dependency.hammer.concat(dependency.egCore, ["src/hook/css.js", "src/movableCoord.js", "src/flicking.js"]),
+		dest : "dist/pkgd/flicking.pkgd.js"
+	},
+	pkgd_infiniteGrid: {
+		options : {
+			banner : "<%=banner.common %><%=banner.pkgd('eg.infiniteGrid') %><%=concat.pkgd_infiniteGrid.src.join('\\n* ')%>\n*/",
+			process: changeSrc
+		},
+		src : dependency.outlayer.concat(dependency.egCore, ["src/customEvent/scrollEnd.js", "src/plugin/persist.js", "src/infiniteGrid.js"]),
+		dest : "dist/pkgd/infiniteGrid.pkgd.js"
 	}
 };
\ No newline at end of file
diff --git a/config/uglify.js b/config/uglify.js
index d4da7ce..9e60a78 100644
--- a/config/uglify.js
+++ b/config/uglify.js
@@ -10,23 +10,23 @@ module.exports = {
 	},
 	pkgd_eg: {
 		options : {
-			banner : "<%=banner.common %><%=banner.pkgd('egjs') %><%=uglify.pkgd_eg.src.join('\\n* ')%>\n*/\n"
+			banner : "<%=banner.common %><%=banner.pkgd('egjs') %><%=concat.pkgd_eg.src.join('\\n* ')%>\n*/\n"
 		},
-		src : dependency.hammer.concat(dependency.outlayer, dependency.egCore, dependency.egExtend, ["src/visible.js", "src/movableCoord.js", "src/flicking.js",  "src/infiniteGrid.js"]),
-		dest : "dist/pkgd/eg.pkgd.min.js"
+		src : "dist/pkgd/<%=pkg.outputname%>.pkgd.js",
+		dest : "dist/pkgd/<%=pkg.outputname%>.pkgd.min.js"
 	},
 	pkgd_flicking: {
 		options : {
-			banner : "<%=banner.common %><%=banner.pkgd('eg.flicking') %><%=uglify.pkgd_flicking.src.join('\\n* ')%>\n*/\n"
+			banner : "<%=banner.common %><%=banner.pkgd('eg.flicking') %><%=concat.pkgd_flicking.src.join('\\n* ')%>\n*/\n"
 		},
-		src : dependency.hammer.concat(dependency.egCore, ["src/hook/css.js", "src/movableCoord.js", "src/flicking.js"]),
+		src : "dist/pkgd/flicking.pkgd.js",
 		dest : "dist/pkgd/flicking.pkgd.min.js"
 	},
 	pkgd_infiniteGrid: {
 		options : {
-			banner : "<%=banner.common %><%=banner.pkgd('eg.infiniteGrid') %><%=uglify.pkgd_infiniteGrid.src.join('\\n* ')%>\n*/\n"
+			banner : "<%=banner.common %><%=banner.pkgd('eg.infiniteGrid') %><%=concat.pkgd_infiniteGrid.src.join('\\n* ')%>\n*/\n"
 		},
-		src : dependency.outlayer.concat(dependency.egCore, ["src/customEvent/scrollEnd.js", "src/plugin/persist.js", "src/infiniteGrid.js"]),
+		src : "dist/pkgd/infiniteGrid.pkgd.js",
 		dest : "dist/pkgd/infiniteGrid.pkgd.min.js"
 	}
 };
\ No newline at end of file