diff --git a/common/error.go b/common/error.go
index ccb337a..1d53f7e 100644
--- a/common/error.go
+++ b/common/error.go
@@ -24,6 +24,7 @@ var (
     ErrFuncNotFound     = errors.New("The function was not found.")
     ErrConnection       = errors.New("Connection error.")
     ErrNoActiveAgent    = errors.New("No active agent.")
+    ErrExecTimeOut      = errors.New("Executing time out.")
 )
 func DisablePanic() {recover()}
 
diff --git a/worker/worker.go b/worker/worker.go
index 3c64f93..708a7f2 100644
--- a/worker/worker.go
+++ b/worker/worker.go
@@ -5,7 +5,6 @@
 package worker
 
 import (
-    "time"
     "bytes"
     "bitbucket.org/mikespook/gearman-go/common"
 )
@@ -238,6 +237,12 @@ func (worker *Worker) SetId(id string) {
 
 // Execute the job. And send back the result.
 func (worker *Worker) exec(job *Job) (err error) {
+    if worker.limit != nil {
+        <-worker.limit
+        defer func() {
+            worker.limit <- true
+        }()
+    }
     var limit int
     if job.DataType == common.JOB_ASSIGN {
         limit = 3
@@ -257,20 +262,7 @@ func (worker *Worker) exec(job *Job) (err error) {
     if !ok {
         return common.Errorf("The function does not exist: %s", funcname)
     }
-    var result []byte
-    if worker.limit != nil {
-        select {
-        case <-worker.limit:
-            defer func() {
-                worker.limit <- true
-            }()
-        case <-time.After(time.Second * time.Duration(f.timeout)):
-            err = common.Errorf("The function was executed timeout: %s", funcname)
-        }
-    }
-    if err == nil {
-        result, err = f.f(job)
-    }
+    result, err := f.f(job)
     var datatype uint32
     if err == nil {
         datatype = common.WORK_COMPLETE