diff --git a/target/bin/addmailuser b/target/bin/addmailuser
index 04b40b4b..c679d701 100755
--- a/target/bin/addmailuser
+++ b/target/bin/addmailuser
@@ -32,3 +32,4 @@ if [ -z "$PASSWD" ]; then
 fi
 HASH="$(doveadm pw -s SHA512-CRYPT -u "$USER" -p "$PASSWD")"
 echo "$USER|$HASH" >> $DATABASE
+sync $DATABASE
diff --git a/target/bin/updatemailuser b/target/bin/updatemailuser
index 1d32d0f0..eb9ef953 100755
--- a/target/bin/updatemailuser
+++ b/target/bin/updatemailuser
@@ -31,3 +31,4 @@ grep -qi "^$(escape "$USER")|" $DATABASE 2>/dev/null ||
 	errex "User \"$USER\" does not exist"
 
 sed -i "s ^"$USER"|.* "$USER"|"$HASH" " $DATABASE
+sync $DATABASE