diff --git a/pg4wp/driver_pgsql.php b/pg4wp/driver_pgsql.php
index 8db9a5a..91012f6 100644
--- a/pg4wp/driver_pgsql.php
+++ b/pg4wp/driver_pgsql.php
@@ -120,10 +120,11 @@
 			{
 				$catchnumrows = true;
 				$sql = str_replace('GROUP BY '.$table_prefix.'posts.ID', '' , $sql);
-				$sql = str_replace('SQL_CALC_FOUND_ROWS', 'DISTINCT', $sql);
-				$GLOBALS['pg4wp_numrows'] = preg_replace( '/SELECT DISTINCT.+FROM ('.$table_prefix.'posts)/', 'SELECT DISTINCT "ID" FROM $1', $sql);
+				$GLOBALS['pg4wp_numrows'] = str_replace( 'SQL_CALC_FOUND_ROWS', 'DISTINCT', $sql);
+				$GLOBALS['pg4wp_numrows'] = preg_replace( '/SELECT DISTINCT.+FROM ('.$table_prefix.'posts)/', 'SELECT DISTINCT "ID" FROM $1', $GLOBALS['pg4wp_numrows']);
 				$GLOBALS['pg4wp_numrows'] = preg_replace( '/SELECT(.+)FROM/', 'SELECT COUNT($1) FROM', $GLOBALS['pg4wp_numrows']);
 				$GLOBALS['pg4wp_numrows'] = preg_replace( '/(ORDER BY|LIMIT).+/', '', $GLOBALS['pg4wp_numrows']);
+				$sql = str_replace('SQL_CALC_FOUND_ROWS', '', $sql);
 			}
 			elseif( false !== strpos($sql, 'FOUND_ROWS()'))
 			{