diff --git a/hmac.nim b/hmac.nim
index 832e23f..eca4827 100644
--- a/hmac.nim
+++ b/hmac.nim
@@ -32,7 +32,7 @@ proc hash_md5*(s: string): MD5Digest {.procvar.} = toMD5(s)
 
 proc toHex*[T](x: T): string {.inline.} =
   when x is Sha1Digest:
-    result = toLowerAscii($x.SecureHash)
+    result = toLowerAscii($SecureHash(x))
   elif x is MD5Digest:
     result = toLowerAscii($x)
   else:
diff --git a/hmac.nimble b/hmac.nimble
index 7f56f8c..d3f9b3d 100644
--- a/hmac.nimble
+++ b/hmac.nimble
@@ -1,4 +1,4 @@
-version       = "0.3.1"
+version       = "0.3.2"
 author        = "Huy Doan"
 description   = "HMAC hashing in Nim"
 license       = "MIT"