diff --git a/dict.go b/dict.go
index e867d34..5051005 100644
--- a/dict.go
+++ b/dict.go
@@ -52,7 +52,7 @@ func (d *Dict) Close() {
 		return
 	}
 	log.Println("Closing", d.filename)
-	close(d.file)
+	closeCloser(d.file)
 	d.file = nil
 }
 
diff --git a/dictionary.go b/dictionary.go
index 4b82ed5..5492476 100644
--- a/dictionary.go
+++ b/dictionary.go
@@ -72,7 +72,7 @@ func (d *dictionaryImp) CalcHash() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	defer close(file)
+	defer closeCloser(file)
 	hash := murmur3.New128()
 	if _, err := io.Copy(hash, file); err != nil {
 		return nil, err
diff --git a/ifo.go b/ifo.go
index f717136..b88d7a8 100644
--- a/ifo.go
+++ b/ifo.go
@@ -73,7 +73,7 @@ func ReadInfo(filename string) (info *Info, err error) {
 		return
 	}
 
-	defer close(reader)
+	defer closeCloser(reader)
 
 	r := bufio.NewReader(reader)
 
diff --git a/utils.go b/utils.go
index f11e8a5..237e643 100644
--- a/utils.go
+++ b/utils.go
@@ -5,7 +5,7 @@ import (
 	"log"
 )
 
-func close(c io.Closer) {
+func closeCloser(c io.Closer) {
 	err := c.Close()
 	if err != nil {
 		log.Println(err)