diff --git a/nagios/bin/pmp-check-mysql-replication-delay b/nagios/bin/pmp-check-mysql-replication-delay
index 1f02585..20bae29 100755
--- a/nagios/bin/pmp-check-mysql-replication-delay
+++ b/nagios/bin/pmp-check-mysql-replication-delay
@@ -73,7 +73,7 @@ main() {
       else
          NOW_FUNC='UNIX_TIMESTAMP(UTC_TIMESTAMP)'
       fi
-      if [ "${OPT_SRVID}" == "MASTER" ]; then
+      if [ "${OPT_SRVID}" = "MASTER" ]; then
         if [ "${MYSQL_CONN}" = 0 ]; then
           OPT_SRVID=$(awk '/Master_Server_Id/{print $2}' "${TEMP_SLAVEDATA}")
         fi
diff --git a/nagios/bin/pmp-check-mysql-ts-count b/nagios/bin/pmp-check-mysql-ts-count
index 06ea3f4..4bef803 100755
--- a/nagios/bin/pmp-check-mysql-ts-count
+++ b/nagios/bin/pmp-check-mysql-ts-count
@@ -61,10 +61,10 @@ main() {
          exit 1
       fi
    fi
-   if [ "${OPT_TARGET}" == "kills" ]; then
+   if [ "${OPT_TARGET}" = "kills" ]; then
       OPT_TABLE="${OPT_TABLE:-percona.kill_log}"
       OPT_TIMESTAMP="${OPT_TIMESTAMP:-timestamp}"
-   elif [ "${OPT_TARGET}" == "fkerrors" ]; then
+   elif [ "${OPT_TARGET}" = "fkerrors" ]; then
       OPT_TABLE="${OPT_TABLE:-percona.foreign_key_errors}"
       OPT_TIMESTAMP="${OPT_TIMESTAMP:-ts}"
    else