diff --git a/src/Query/ActiveQuery.php b/src/Query/ActiveQuery.php
index ed0322c..351b7e7 100644
--- a/src/Query/ActiveQuery.php
+++ b/src/Query/ActiveQuery.php
@@ -103,9 +103,11 @@ public function sqlStatement(QueryParameters $parameters = null): string
             throw new BuilderException('Unable to build query without associated driver');
         }
 
-        return $this->driver->getQueryCompiler()->compile(
+        $compiler = $this->driver->getQueryCompiler();
+
+        return $compiler->compile(
             $parameters ?? new QueryParameters(),
-            $this->prefix,
+            $this->prefix ?? '',
             $this
         );
     }