diff --git a/SparkleLib/Git/SparkleFetcherGit.cs b/SparkleLib/Git/SparkleFetcherGit.cs
index abbaa078..5e0af755 100755
--- a/SparkleLib/Git/SparkleFetcherGit.cs
+++ b/SparkleLib/Git/SparkleFetcherGit.cs
@@ -314,12 +314,12 @@ namespace SparkleLib.Git {
             // Set up the encryption filter
             SparkleGit git_config_smudge = new SparkleGit (TargetFolder,
                 "config filter.encryption.smudge \"openssl enc -d -aes-256-cbc -base64" + " " +
-                 "-S " + password.SHA256 (this.password_salt) + " " +
+                "-S " + password.SHA256 (this.password_salt).Substring (0, 16) + " " +
                 "-pass file:.git/info/encryption_password\"");
 
             SparkleGit git_config_clean = new SparkleGit (TargetFolder,
                 "config filter.encryption.clean  \"openssl enc -e -aes-256-cbc -base64" + " " +
-                 "-S " + password.SHA256 (this.password_salt) + " " +
+                "-S " + password.SHA256 (this.password_salt).Substring (0, 16) + " " +
                 "-pass file:.git/info/encryption_password\"");
 
             git_config_smudge.StartAndWaitForExit ();