diff --git a/flush_host_cache.sh b/flush_host_cache.sh
index 2c827f6..7246437 100755
--- a/flush_host_cache.sh
+++ b/flush_host_cache.sh
@@ -110,6 +110,8 @@ if [[ -z "$mysql_credential_args" ]]; then
          || ( [[ $MAJOR_VERSION -eq 10 ]] && [[ $MINOR_VERSION -gt 3 ]] )) ; then
       if [[ -S "/tmp/mysql.sock" ]]; then
          mysql_credential_args="-u root -S /tmp/mysql.sock"
+      elif [[ -S "/run/mysqld/mysqld.sock" ]]; then
+         mysql_credential_args="-u root -S /run/mysqld/mysqld.sock"
       elif [[ -S "/var/run/mysqld/mysqld.sock" ]]; then
          mysql_credential_args="-u root -S /var/run/mysqld/mysqld.sock"
       else
diff --git a/flush_query_cache.sh b/flush_query_cache.sh
index 50fc798..61b215e 100755
--- a/flush_query_cache.sh
+++ b/flush_query_cache.sh
@@ -72,6 +72,8 @@ if [[ -z "$mysql_credential_args" ]]; then
          || ( [[ $MYSQL_MAJOR_VERSION -eq 10 ]] && [[ $MYSQL_MINOR_VERSION -gt 3 ]] )) ; then
       if [[ -S "/tmp/mysql.sock" ]]; then
          mysql_credential_args="-u root -S /tmp/mysql.sock"
+      elif [[ -S "/run/mysqld/mysqld.sock" ]]; then
+         mysql_credential_args="-u root -S /run/mysqld/mysqld.sock"
       elif [[ -S "/var/run/mysqld/mysqld.sock" ]]; then
          mysql_credential_args="-u root -S /var/run/mysqld/mysqld.sock"
       else
diff --git a/optimize_mysql_tables-ND.sh b/optimize_mysql_tables-ND.sh
index ca2a981..fa42db6 100755
--- a/optimize_mysql_tables-ND.sh
+++ b/optimize_mysql_tables-ND.sh
@@ -274,6 +274,8 @@ if [[ -z "$mysql_credential_args" ]]; then
          || ( [[ $MAJOR_VERSION -eq 10 ]] && [[ $MINOR_VERSION -gt 3 ]] )) ; then
       if [[ -S "/tmp/mysql.sock" ]]; then
          mysql_credential_args="-u root -S /tmp/mysql.sock"
+      elif [[ -S "/run/mysqld/mysqld.sock" ]]; then
+         mysql_credential_args="-u root -S /run/mysqld/mysqld.sock"
       elif [[ -S "/var/run/mysqld/mysqld.sock" ]]; then
          mysql_credential_args="-u root -S /var/run/mysqld/mysqld.sock"
       else