diff --git a/lib/bash/collect.sh b/lib/bash/collect.sh
index 8d8e33aa..9e0b3f4b 100644
--- a/lib/bash/collect.sh
+++ b/lib/bash/collect.sh
@@ -246,7 +246,7 @@ collect() {
          (echo $ts; transactions) >>"$d/$p-transactions" &
       fi
 
-      if [ [ "${mysql_version}" '>' "5.6" ] && [ $ps_instrumentation_enabled == "yes"] ]; then
+      if [ "${mysql_version}" '>' "5.6" ] && [ $ps_instrumentation_enabled == "yes"]; then
          ps_locks_transactions "$d/$p-ps-locks-transactions"
       fi
 
diff --git a/sandbox/servers/5.7/my.sandbox.cnf b/sandbox/servers/5.7/my.sandbox.cnf
index c5d9452e..3373c024 100644
--- a/sandbox/servers/5.7/my.sandbox.cnf
+++ b/sandbox/servers/5.7/my.sandbox.cnf
@@ -31,5 +31,5 @@ lower_case_table_names     = 0
 # fkc test
 binlog_format              = STATEMENT
 performance_schema         = ON
-performance-schema-instrument='wait/lock/metadata/sql/mdl=ON'
-performance-schema-instrument='transaction=ON'
+#performance-schema-instrument='wait/lock/metadata/sql/mdl=ON'
+#performance-schema-instrument='transaction=ON'