diff --git a/storage/innodb_plugin/handler/ha_innodb.cc b/storage/innodb_plugin/handler/ha_innodb.cc
index 2334d41cb39..24a56dd3b0d 100644
--- a/storage/innodb_plugin/handler/ha_innodb.cc
+++ b/storage/innodb_plugin/handler/ha_innodb.cc
@@ -10730,7 +10730,7 @@ static MYSQL_SYSVAR_STR(change_buffering, innobase_change_buffering,
 
 static MYSQL_SYSVAR_ULONG(read_ahead_threshold, srv_read_ahead_threshold,
   PLUGIN_VAR_RQCMDARG,
-  "Number of pages that must be accessed sequentially for InnoDB to"
+  "Number of pages that must be accessed sequentially for InnoDB to "
   "trigger a readahead.",
   NULL, NULL, 56, 0, 64, 0);