diff --git a/cloud/azure/database/mysql/mode/connections.pm b/cloud/azure/database/mysql/mode/connections.pm
index 48d0e6a28..ed7fed9a0 100644
--- a/cloud/azure/database/mysql/mode/connections.pm
+++ b/cloud/azure/database/mysql/mode/connections.pm
@@ -126,7 +126,7 @@ sub check_options {
         $metrics_mapping_transformed->{$metric_type} = $self->{metrics_mapping}->{$metric_type};
     }
 
-    foreach my $metric (keys %{$self->{metrics_mapping_transformed}}) {
+    foreach my $metric (keys %{$metrics_mapping_transformed}) {
         next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
             && $metric !~ /$self->{option_results}->{filter_metric}/);
         push @{$self->{az_metrics}}, $metric;
diff --git a/cloud/azure/database/mysql/mode/replication.pm b/cloud/azure/database/mysql/mode/replication.pm
index ea1c89602..24bade192 100644
--- a/cloud/azure/database/mysql/mode/replication.pm
+++ b/cloud/azure/database/mysql/mode/replication.pm
@@ -112,7 +112,7 @@ sub check_options {
         $metrics_mapping_transformed->{$metric_type} = $self->{metrics_mapping}->{$metric_type};
     }
 
-    foreach my $metric (keys %{$self->{metrics_mapping_transformed}}) {
+    foreach my $metric (keys %{$metrics_mapping_transformed}) {
         next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
             && $metric !~ /$self->{option_results}->{filter_metric}/);
         push @{$self->{az_metrics}}, $metric;
diff --git a/cloud/azure/database/mysql/mode/storage.pm b/cloud/azure/database/mysql/mode/storage.pm
index ab262d643..8596b89fc 100644
--- a/cloud/azure/database/mysql/mode/storage.pm
+++ b/cloud/azure/database/mysql/mode/storage.pm
@@ -149,7 +149,7 @@ sub check_options {
         $metrics_mapping_transformed->{$metric_type} = $self->{metrics_mapping}->{$metric_type};
     }
 
-    foreach my $metric (keys %{$self->{metrics_mapping_transformed}}) {
+    foreach my $metric (keys %{$metrics_mapping_transformed}) {
         next if (defined($self->{option_results}->{filter_metric}) && $self->{option_results}->{filter_metric} ne ''
             && $metric !~ /$self->{option_results}->{filter_metric}/);
         push @{$self->{az_metrics}}, $metric;