diff --git a/mysql-test/t/show_check-master.opt b/mysql-test/t/show_check-master.opt
index 3eb98fc3d6b..7a438da06cc 100644
--- a/mysql-test/t/show_check-master.opt
+++ b/mysql-test/t/show_check-master.opt
@@ -1 +1 @@
---log-slow-queries --log-long-format --log-queries-not-using-indexes
+--log-slow-queries --log-long-format --log-queries-not-using-indexes --myisam-recover=""
diff --git a/mysql-test/t/show_check.test b/mysql-test/t/show_check.test
index a4cd8d323f9..34e1941c9d7 100644
--- a/mysql-test/t/show_check.test
+++ b/mysql-test/t/show_check.test
@@ -903,6 +903,11 @@ show variables like "log_queries_not_using_indexes";
 select 1 from information_schema.tables limit 1;
 show status like 'slow_queries';
 
+#
+# Bug #30088: Can't disable myisam-recover by a value of ""
+#
+show variables like 'myisam_recover_options';
+
 --echo End of 5.0 tests
 
 --disable_result_log
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 5e2139acd91..536d3d95933 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -7627,11 +7627,16 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
 #endif
   case OPT_MYISAM_RECOVER:
   {
-    if (!argument || !argument[0])
+    if (!argument)
     {
       myisam_recover_options=    HA_RECOVER_DEFAULT;
       myisam_recover_options_str= myisam_recover_typelib.type_names[0];
     }
+    else if (!argument[0])
+    {
+      myisam_recover_options= HA_RECOVER_NONE;
+      myisam_recover_options_str= "OFF";
+    }
     else
     {
       myisam_recover_options_str=argument;