diff --git a/psalm.xml b/psalm.xml
index 10d319ae..906206a6 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -15,5 +15,6 @@
     </projectFiles>
     <issueHandlers>
         <MixedAssignment errorLevel="suppress"/>
+        <RiskyTruthyFalsyComparison errorLevel="suppress" />
     </issueHandlers>
 </psalm>
diff --git a/src/DDLQueryBuilder.php b/src/DDLQueryBuilder.php
index c8f44fdf..15b8cd92 100644
--- a/src/DDLQueryBuilder.php
+++ b/src/DDLQueryBuilder.php
@@ -105,8 +105,8 @@ public function createIndex(
             [$schema, $table] = $tableParts;
         }
 
-        return 'CREATE ' . ($indexType !== null ? $indexType . ' ' : '') . 'INDEX '
-            . $this->quoter->quoteTableName(($schema !== null ? $schema . '.' : '') . $name)
+        return 'CREATE ' . (!empty($indexType) ? $indexType . ' ' : '') . 'INDEX '
+            . $this->quoter->quoteTableName((!empty($schema) ? $schema . '.' : '') . $name)
             . ' ON '
             . $this->quoter->quoteTableName($table)
             . ' (' . $this->queryBuilder->buildColumns($columns) . ')';