diff --git a/Documentation/Filters/Query-Log-All-Filter.md b/Documentation/Filters/Query-Log-All-Filter.md
index 28c27fbd1..f93f8a8a8 100644
--- a/Documentation/Filters/Query-Log-All-Filter.md
+++ b/Documentation/Filters/Query-Log-All-Filter.md
@@ -118,7 +118,9 @@ flush=true
 ### `append`
 
 Append new entries to log files instead of overwriting them. The default is
-false.
+true.
+NOTE: the default was changed from false to true, as of the following
+versions: 2.4.18, 2.5.16 and 6.2.
 
 ```
 append=true
diff --git a/server/modules/filter/qlafilter/qlafilter.cc b/server/modules/filter/qlafilter/qlafilter.cc
index 87f13f455..4084ec8ee 100644
--- a/server/modules/filter/qlafilter/qlafilter.cc
+++ b/server/modules/filter/qlafilter/qlafilter.cc
@@ -1007,7 +1007,7 @@ extern "C" MXS_MODULE* MXS_CREATE_MODULE()
                 PARAM_FLUSH,    MXS_MODULE_PARAM_BOOL,          "false"
             },
             {
-                PARAM_APPEND,   MXS_MODULE_PARAM_BOOL,          "false"
+                PARAM_APPEND,   MXS_MODULE_PARAM_BOOL,          "true"
             },
             {MXS_END_MODULE_PARAMS}
         }
diff --git a/server/modules/filter/qlafilter/qlafilter.hh b/server/modules/filter/qlafilter/qlafilter.hh
index 7c7f34a58..e8f1192d7 100644
--- a/server/modules/filter/qlafilter/qlafilter.hh
+++ b/server/modules/filter/qlafilter/qlafilter.hh
@@ -100,7 +100,7 @@ public:
         uint32_t    log_file_data_flags {0};    /* What data is saved to the files */
         std::string filebase;                   /* The filename base */
         bool        flush_writes {false};       /* Flush log file after every write? */
-        bool        append {false};             /* Open files in append-mode? */
+        bool        append {true};              /* Open files in append-mode? */
         std::string query_newline;              /* Character(s) used to replace a newline within a query */
         std::string separator;                  /*  Character(s) used to separate elements */
         std::string user_name;                  /* The user name to filter on */