diff --git a/postgres/datadog_checks/postgres/util.py b/postgres/datadog_checks/postgres/util.py
index 2d159e2bbd41b..6450da3fc2e0e 100644
--- a/postgres/datadog_checks/postgres/util.py
+++ b/postgres/datadog_checks/postgres/util.py
@@ -332,7 +332,7 @@ def get_schema_field(descriptors):
 
 TX_METRICS = {
     'name': 'pg_snapshot_xmin',
-    'query': "pg_snapshot_xmin(pg_current_snapshot())",
+    'query': "select pg_snapshot_xmin(pg_current_snapshot())",
     'columns': [
         {'name': 'postgresql.transactions.xid', 'type': 'gauge'},
     ],
@@ -340,7 +340,7 @@ def get_schema_field(descriptors):
 
 TX_METRICS_LT_13 = {
     'name': 'pg_snapshot_xmin',
-    'query': "txid_snapshot_xmin(txid_current_snapshot())",
+    'query': "select txid_snapshot_xmin(txid_current_snapshot())",
     'columns': [
         {'name': 'postgresql.transactions.xid', 'type': 'gauge'},
     ],
diff --git a/postgres/tests/test_pg_integration.py b/postgres/tests/test_pg_integration.py
index 4fcbabf350f4d..45dc7551f5748 100644
--- a/postgres/tests/test_pg_integration.py
+++ b/postgres/tests/test_pg_integration.py
@@ -36,7 +36,6 @@
     requires_static_version,
 )
 from .utils import requires_over_10, requires_over_13, requires_over_14
-from .utils import requires_over_10
 
 CONNECTION_METRICS = ['postgresql.max_connections', 'postgresql.percent_usage_connections']