diff --git a/pack.go b/pack.go
index bdf3581..d6d84e4 100644
--- a/pack.go
+++ b/pack.go
@@ -21,7 +21,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	path "path/filepath"
@@ -454,24 +453,6 @@ func packDirectory(excludePrefix []string, excludeSuffix []string,
 	return
 }
 
-func isBeegoProject(thePath string) bool {
-	fh, _ := os.Open(thePath)
-	fis, _ := fh.Readdir(-1)
-	regex := regexp.MustCompile(`(?s)package main.*?import.*?\(.*?github.com/astaxie/beego".*?\).*func main()`)
-	for _, fi := range fis {
-		if fi.IsDir() == false && strings.HasSuffix(fi.Name(), ".go") {
-			data, err := ioutil.ReadFile(path.Join(thePath, fi.Name()))
-			if err != nil {
-				continue
-			}
-			if len(regex.Find(data)) > 0 {
-				return true
-			}
-		}
-	}
-	return false
-}
-
 func packApp(cmd *Command, args []string) int {
 	ShowShortVersionBanner()
 
diff --git a/util.go b/util.go
index fd2e1ce..32db2f5 100644
--- a/util.go
+++ b/util.go
@@ -15,14 +15,16 @@
 package main
 
 import (
+	"fmt"
+	"io/ioutil"
 	"log"
 	"os"
+	"path"
 	"path/filepath"
+	"regexp"
 	"runtime"
 	"strings"
 	"time"
-	"path"
-	"fmt"
 )
 
 // Go is a basic promise implementation: it wraps calls a function in a goroutine
@@ -35,7 +37,7 @@ func Go(f func() error) chan error {
 	return ch
 }
 
-// if os.env DEBUG set, debug is on
+// Debugf outputs a formtted debug message, when os.env DEBUG is set.
 func Debugf(format string, a ...interface{}) {
 	if os.Getenv("DEBUG") != "" {
 		_, file, line, ok := runtime.Caller(1)
@@ -174,6 +176,37 @@ func GetGOPATHs() []string {
 	return paths
 }
 
+func isBeegoProject(thePath string) bool {
+	mainFiles := []string{}
+	hasBeegoRegex := regexp.MustCompile(`(?s)package main.*?import.*?\(.*?github.com/astaxie/beego".*?\).*func main()`)
+	// Walk the application path tree to look for main files.
+	// Main files must satisfy the 'hasBeegoRegex' regular expression.
+	err := filepath.Walk(thePath, func(fpath string, f os.FileInfo, err error) error {
+		if !f.IsDir() { // Skip sub-directories
+			data, _err := ioutil.ReadFile(fpath)
+			if _err != nil {
+				return _err
+			}
+			if len(hasBeegoRegex.Find(data)) > 0 {
+				mainFiles = append(mainFiles, fpath)
+			}
+		}
+		return nil
+	})
+
+	if err != nil {
+		log.Fatalf("Unable to walk '%s' tree: %v", thePath, err)
+		return false
+	}
+
+	if len(mainFiles) > 0 {
+		return true
+	}
+	return false
+}
+
+// SearchGOPATHs searchs the user GOPATH(s) for the specified application name.
+// It returns a boolean, the application's GOPATH and its full path.
 func SearchGOPATHs(app string) (bool, string, string) {
 	gps := GetGOPATHs()
 	if len(gps) == 0 {