diff --git a/src/freedombone-addcert b/src/freedombone-addcert
index 0d4ec2fc..507eab47 100755
--- a/src/freedombone-addcert
+++ b/src/freedombone-addcert
@@ -218,7 +218,7 @@ fi
 # generate DH params
 if [ ! $NODH ]; then
     if [ ! -f /etc/ssl/certs/${CERTFILE}.dhparam ]; then
-        ${PROJECT_NAME}-dhparam -h ${CERTFILE}
+        ${PROJECT_NAME}-dhparam -h ${CERTFILE} --fast yes
     fi
 fi