diff --git a/lib/Service/SqlGuard.php b/lib/Service/SqlGuard.php
index 5b10cc1..7af03af 100644
--- a/lib/Service/SqlGuard.php
+++ b/lib/Service/SqlGuard.php
@@ -27,7 +27,7 @@ class SqlGuard
         '/\bpg_stat_file\s*\(/i' => 'pg_stat_file()',
         '/\blo_import\s*\(/i' => 'lo_import()',
         '/\blo_export\s*\(/i' => 'lo_export()',
-        '/\bdblink(_connect)?\s*\(/i' => 'dblink() (connects to arbitrary databases)',
+        '/\bdblink\w*\s*\(/i' => 'dblink functions (connect to arbitrary databases)',
         '/\bLOAD_FILE\s*\(/i' => 'LOAD_FILE()',
         '/\bINTO\s+(OUTFILE|DUMPFILE)\b/i' => 'INTO OUTFILE/DUMPFILE',
     ];
diff --git a/tests/Unit/Service/SqlGuardTest.php b/tests/Unit/Service/SqlGuardTest.php
index 69812b8..9091708 100644
--- a/tests/Unit/Service/SqlGuardTest.php
+++ b/tests/Unit/Service/SqlGuardTest.php
@@ -23,6 +23,9 @@ class SqlGuardTest extends TestCase
             ["SELECT pg_ls_dir('/')"],
             ["SELECT lo_import('/etc/passwd')"],
             ["SELECT dblink_connect('host=x')"],
+            ["SELECT dblink_exec('host=x', 'DROP TABLE t')"],
+            ["SELECT dblink_send_query('c', 'SELECT 1')"],
+            ["SELECT * FROM dblink('host=x', 'SELECT 1') AS t(a int)"],
             ["SELECT * FROM t INTO OUTFILE '/tmp/x'"],
             ["COPY (SELECT '/*') TO PROGRAM 'sh' --*/"],
             ["COPY (SELECT '--') TO PROGRAM 'sh'"],