diff --git a/cmd/geo/cmd_check.go b/cmd/geo/cmd_check.go
index 83313dd..5aa9a4d 100644
--- a/cmd/geo/cmd_check.go
+++ b/cmd/geo/cmd_check.go
@@ -73,6 +73,7 @@ func check(cmd *cobra.Command, args []string) error {
 			fmt.Println("❌Failed to verify GeoIP database!")
 			fmt.Println("Error:", err)
 		}
+		mmdb.Close()
 		if mmdb.Metadata.Description["PLACEHOLDER"] == "geo" {
 			mmdb.Metadata.Description = nil
 		}
diff --git a/cmd/geo/cmd_look.go b/cmd/geo/cmd_look.go
index 3be1f63..9fad923 100644
--- a/cmd/geo/cmd_look.go
+++ b/cmd/geo/cmd_look.go
@@ -124,6 +124,7 @@ func look(cmd *cobra.Command, args []string) error {
 		}
 
 		codes := db.LookupCode(ip)
+		db.Close()
 		for _, code := range codes {
 			result[strings.ToUpper(code)] = struct{}{}
 		}
diff --git a/geoip/geoip.go b/geoip/geoip.go
index 2654f35..fa21c54 100644
--- a/geoip/geoip.go
+++ b/geoip/geoip.go
@@ -54,3 +54,7 @@ func (db Database) LookupCode(ip net.IP) []string {
 		panic(F.ToString("unknown GeoIP database type: ", string(db.MemoryType)))
 	}
 }
+
+func (db Database) Close() error {
+	return db.reader.Close()
+}