diff --git a/coop.go b/coop.go
index 2bd9f6e..8b3cb13 100644
--- a/coop.go
+++ b/coop.go
@@ -64,23 +64,6 @@ func Every(dur time.Duration, fn func()) {
 	})
 }
 
-// Runs fn and times out if it runs longer than the provided
-// duration. It will send false to the returning
-// channel if timeout occurs.
-// TODO: cancel if timeout occurs
-func Timeout(duration time.Duration, fn func()) (done <-chan bool) {
-	ch := make(chan bool, 2)
-	go func() {
-		<-time.After(duration)
-		doneSig(ch, false)
-	}()
-	go func() {
-		fn()
-		doneSig(ch, true)
-	}()
-	return ch
-}
-
 // Starts to run the given list of fns concurrently.
 func All(fns ...func()) (done <-chan bool) {
 	var wg sync.WaitGroup
diff --git a/coop_test.go b/coop_test.go
index aa6a34e..ee30036 100644
--- a/coop_test.go
+++ b/coop_test.go
@@ -86,24 +86,6 @@ func TestUntil_Past(test *testing.T) {
 	}
 }
 
-func TestTimeout_TimedOut(test *testing.T) {
-	done := Timeout(100*time.Millisecond, func() {
-		time.Sleep(time.Minute)
-	})
-	if <-done {
-		test.Errorf("Expected to get timed out, but it has been completed")
-	}
-}
-
-func TestTimeout_Completed(test *testing.T) {
-	done := Timeout(time.Minute, func() {
-		time.Sleep(100 * time.Millisecond)
-	})
-	if !<-done {
-		test.Errorf("Expected to get completed, but it has been timed out")
-	}
-}
-
 func TestAll(test *testing.T) {
 	start := time.Now()
 	var val1, val2, val3 bool