diff --git a/stepmania/src/CryptManager.cpp b/stepmania/src/CryptManager.cpp
index 82070e9210..b5a9fb0e2e 100644
--- a/stepmania/src/CryptManager.cpp
+++ b/stepmania/src/CryptManager.cpp
@@ -378,7 +378,7 @@ RString CryptManager::GetMD5ForString( RString sData )
 
 RString CryptManager::GetSHA1ForString( RString sData )
 {
-	unsigned char digest[16];
+	unsigned char digest[20];
 
 	int iHash = register_hash( &sha1_desc );