diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2ef3277
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module sgf_to_gif
+
+go 1.16
diff --git a/sgf_to_gif.go b/sgf_to_gif.go
index d7db298..d401df4 100644
--- a/sgf_to_gif.go
+++ b/sgf_to_gif.go
@@ -13,7 +13,7 @@ import (
 	"strconv"
 	"strings"
 
-	"./chars"
+	"sgf_to_gif/chars"
 )
 
 // ------------------------------------------------