diff --git a/vpnsetup.sh b/vpnsetup.sh
index a146f55..d6cf046 100755
--- a/vpnsetup.sh
+++ b/vpnsetup.sh
@@ -239,7 +239,7 @@ conn shared
   ikev2=never
   ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
   phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
-  sha2-truncbug=yes
+  sha2-truncbug=no
 
 conn l2tp-psk
   auto=add
diff --git a/vpnsetup_centos.sh b/vpnsetup_centos.sh
index 789132c..a644263 100755
--- a/vpnsetup_centos.sh
+++ b/vpnsetup_centos.sh
@@ -226,7 +226,7 @@ conn shared
   ikev2=never
   ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024
   phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2
-  sha2-truncbug=yes
+  sha2-truncbug=no
 
 conn l2tp-psk
   auto=add