diff --git a/bin/pt-mysql-summary b/bin/pt-mysql-summary
index 815d2571..94039a76 100755
--- a/bin/pt-mysql-summary
+++ b/bin/pt-mysql-summary
@@ -2096,10 +2096,9 @@ section_innodb () {
    local bp_dirt="$(get_var Innodb_buffer_pool_pages_dirty "$status_file")"
    local bp_fill=$((${bp_pags} - ${bp_free}))
 
-   local mysql_version=$(get_var version "$variables_file" | awk -F'-' '{print $1}')
-   local transaction_isolation_var="tx_isolation"
-   if [ "$mysql_version" '>' "5.7.19" ]; then # true if version >= 5.7.20
-         transaction_isolation_var="transaction_isolation"
+   local transaction_isolation_var="transaction_isolation"
+   if [ "$version" '<' "5.7.20" ]; then # false if version >= 5.7.20
+      transaction_isolation_var="tx_isolation"
    fi
 
    name_val "Buffer Pool Fill"   "$(fuzzy_pct ${bp_fill} ${bp_pags})"
diff --git a/lib/bash/report_mysql_info.sh b/lib/bash/report_mysql_info.sh
index d6a5df73..79315b2f 100644
--- a/lib/bash/report_mysql_info.sh
+++ b/lib/bash/report_mysql_info.sh
@@ -1016,10 +1016,9 @@ section_innodb () {
    local bp_fill=$((${bp_pags} - ${bp_free}))
 
    # dynamically allocate variable name - transaction_isolation
-   local mysql_version=$(get_var version "$variables_file" | awk -F'-' '{print $1}')
-   local transaction_isolation_var="tx_isolation"
-   if [ "$mysql_version" '>' "5.7.19" ]; then # true if version >= 5.7.20
-         transaction_isolation_var="transaction_isolation"
+   local transaction_isolation_var="transaction_isolation"
+   if [ "$version" '<' "5.7.20" ]; then # false if version >= 5.7.20
+      transaction_isolation_var="tx_isolation"
    fi
 
    name_val "Buffer Pool Fill"   "$(fuzzy_pct ${bp_fill} ${bp_pags})"
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc008.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc008.txt
index d080fcc1..c8b560ee 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc008.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc008.txt
@@ -259,7 +259,7 @@ Specify --databases or --all-databases to dump and summarize schemas
        Thread Concurrency | 0
       Concurrency Tickets | 5000
        Commit Concurrency | 0
-      Txn Isolation Level | 
+      Txn Isolation Level | REPEATABLE-READ
         Adaptive Flushing | ON
       Adaptive Checkpoint | 
            Checkpoint Age | 69k
diff --git a/t/pt-mysql-summary/samples/expected_output_temp_enc009.txt b/t/pt-mysql-summary/samples/expected_output_temp_enc009.txt
index ec502f21..ff0763f9 100644
--- a/t/pt-mysql-summary/samples/expected_output_temp_enc009.txt
+++ b/t/pt-mysql-summary/samples/expected_output_temp_enc009.txt
@@ -264,7 +264,7 @@ Specify --databases or --all-databases to dump and summarize schemas
        Thread Concurrency | 0
       Concurrency Tickets | 5000
        Commit Concurrency | 0
-      Txn Isolation Level | 
+      Txn Isolation Level | REPEATABLE-READ
         Adaptive Flushing | ON
       Adaptive Checkpoint | 
            Checkpoint Age | 0