diff -up cups-2.2.12/conf/cups-files.conf.in.synconclose cups-2.2.12/conf/cups-files.conf.in
--- cups-2.2.12/conf/cups-files.conf.in.synconclose	2019-08-16 00:35:30.000000000 +0200
+++ cups-2.2.12/conf/cups-files.conf.in	2019-08-19 09:58:14.646567949 +0200
@@ -7,7 +7,7 @@
 #FatalErrors @CUPS_FATAL_ERRORS@
 
 # Do we call fsync() after writing configuration or status files?
-#SyncOnClose No
+#SyncOnClose Yes
 
 # Default user and group for filters/backends/helper programs; this cannot be
 # any user or group that resolves to ID 0 for security reasons...
diff -up cups-2.2.12/doc/help/man-cups-files.conf.html.synconclose cups-2.2.12/doc/help/man-cups-files.conf.html
--- cups-2.2.12/doc/help/man-cups-files.conf.html.synconclose	2019-08-16 00:35:30.000000000 +0200
+++ cups-2.2.12/doc/help/man-cups-files.conf.html	2019-08-19 09:58:14.646567949 +0200
@@ -150,7 +150,7 @@ The default is "/var/run/cups" or "/etc/
 <dd style="margin-left: 5.0em">Specifies whether the scheduler calls
 <b>fsync</b>(2)
 after writing configuration or state files.
-The default is "No".
+The default is "Yes".
 <dt><a name="SystemGroup"></a><b>SystemGroup </b><i>group-name </i>[ ... <i>group-name</i> ]
 <dd style="margin-left: 5.0em">Specifies the group(s) to use for <i>@SYSTEM</i> group authentication.
 The default contains "admin", "lpadmin", "root", "sys", and/or "system".
diff -up cups-2.2.12/man/cups-files.conf.man.in.synconclose cups-2.2.12/man/cups-files.conf.man.in
--- cups-2.2.12/man/cups-files.conf.5.synconclose	2019-08-16 00:35:30.000000000 +0200
+++ cups-2.2.12/man/cups-files.conf.5	2019-08-19 09:58:14.646567949 +0200
@@ -214,7 +214,7 @@ The default is "/var/run/cups" or "/etc/
 Specifies whether the scheduler calls
 .BR fsync (2)
 after writing configuration or state files.
-The default is "No".
+The default is "Yes".
 .\"#SystemGroup
 .TP 5
 \fBSystemGroup \fIgroup-name \fR[ ... \fIgroup-name\fR ]
diff -up cups-2.2.12/scheduler/conf.c.synconclose cups-2.2.12/scheduler/conf.c
--- cups-2.2.12/scheduler/conf.c.synconclose	2019-08-19 09:58:14.647567941 +0200
+++ cups-2.2.12/scheduler/conf.c	2019-08-19 09:59:36.066927455 +0200
@@ -735,7 +735,7 @@ cupsdReadConfiguration(void)
   RootCertDuration         = 300;
   Sandboxing               = CUPSD_SANDBOXING_STRICT;
   StrictConformance        = FALSE;
-  SyncOnClose              = FALSE;
+  SyncOnClose              = TRUE;
   Timeout                  = 900;
   WebInterface             = CUPS_DEFAULT_WEBIF;