diff --git a/go/sizes.go b/go/sizes.go
index 30b2e92d6..e72b44f86 100644
--- a/go/sizes.go
+++ b/go/sizes.go
@@ -1,5 +1,9 @@
 package flatbuffers
 
+import (
+        "unsafe"
+)
+
 const (
 	// See http://golang.org/ref/spec#Numeric_types