diff --git a/core/crypto/hash/hash_os.odin b/core/crypto/hash/hash_os.odin
index d69f21237..1fbaab3fe 100644
--- a/core/crypto/hash/hash_os.odin
+++ b/core/crypto/hash/hash_os.odin
@@ -1,6 +1,7 @@
 //+build !freestanding
 package crypto_hash
 
+import "core:io"
 import "core:os"
 
 // hash_file will read the file provided by the given handle and return the